No they are not a hedgehog and are of the Echinop genus. Their name comes from their appearance as apposed to genetics.
Some will have a higher fruit intake and others will eat nothing really more than morio or standard mealies. They are more susceptable to the cold than the APH and would be similar to Hemiechinus if we are to compare them to a hedgie. They will play on a wheel and live in social groups like the APH can and I think apart from that and the fact they will hibernate thats all I can think to offer on them right now.
Care is very similar but keep in mind they are different animals. What sex did you buy? Oh and well done, I personally love these little animals. Pics and his/her name would be lovely (hint, hint )