The reason I say this is the OP is using a 5500 watt generator, which has a 30 amp receptacle. An electric stove (depending on the kW rating) can be anywhere from a 40 amp circuit to a 50 amp circuit (50 amps particularly if it has a double oven).
A 30 amp receptacle can go up to 7200 watts for the receptacle itself. The wattage of the generator itself is a whole different ballgame. Most generators up to 5000 watts have a 20 amp receptacle and generators between 5000 and 7500 watts have a 30 amp receptacle. When I installed my transfer switch »www.homedepot.com/h_d1/N-5yc1v/R···n-rT81SU
, I used the 240 volt 20 amp circuit for my electric baseboards in the ground level of my unit. The circuit that they are on is a 240 volt 20 amp circuit. When I run the heat on the generator, I am going to have to turn off everything else on the generator or I'll risk overloading/damaging the generator or a fire. Any 240 volt heating appliance is going to use a good portion of a portable generator's capacity. If you wanted to run a stove during a power outage, your best bet would be to have an electrician install a properly sized permanent standby generator since those come in all shapes and sizes. The best time to install these is during the summer in good weather. Portable generators are typically limited in size until you go towards the ones that are mounted on trailers. Some are large enough (particularly ones used to power carnival rides at state fairs) that they occupy a semi trailer. Anything larger than that would have to be permanently installed.
The nice thing about permanent standby generators is a properly sized unit can power a house at the level of normal utility power. The reason I don't have one is finances right now.
I bought my portable generator during the October snowstorm so I was limited to the units that were shipped in (Briggs & Stratton Storm Responder series 5500 watts capacity). Otherwise I would have bought one with a metal fuel tank instead of that cheap plastic one that I have. I would have probably bought a Generac as well since they specialize in building generators or a nicer Briggs & Stratton with a metal fuel tank.
The propane Generator from Generac would have been nice as propane is easier to store and obtain during outages (blue rhino exchange sites in a desperate situation) but it only goes up to 3250 watts (barely enough to power one baseboard heater).