I have 49 on my desktop, 58 on my laptop. I wouldn't worry too much unless you start to get low on RAM. How much are you using?
Depending on what programs came pre-installed, some may be disabled to free up some memory if you're concerned. Be warned, that disabling some factory-installed software can affect your computer depending on what it does.
If you do want to disable anything, but not sure what, I'd post your Startup programs here for the experts to look at.