For the most part Alex K is right, it's way to much power for a beginner's bike. I'm not saying you can't do it (my buddy learned on a '04 R6 and has yet to ever lay down a bike, however, I have another friend who broke half the bones in his body because he did the same thing with a CBR600RR), but you will be taking an excessively bigger risk than you need to. If you have never ridden it's highly recommended by most experienced riders that you start with a bike that has 2 or fewer cylinders and 600cc or less. A Ninja 250 is widely regarded as one of the most popular beginner crotch rocket styled bikes around with enough power to cruise at highway speeds and lack enough to prevent you from pulling accidental wheelies. It also has styling that will hide the parallel twin motor and does not have '250' stickers slathered all over, so only people who know the bike will know you're running a smaller bike.
Also, take into account that you are quite short, and your inseam is going to probably coincide. The majority of bikes out there run seat heights of about 30" (give or take an inch or two). You want to find a seat height that is less than or equal to your inseam (preferably less than), otherwise you won't be able to get both feet on the ground at stops. Because of your height you may want to look at a cruiser of some kind to start with until you feel comfortable moving up to a taller bike.
As stated above however, sit on the bike before purchasing it, and most people will allow you to take it for a test ride if you have cash in hand.