I get another (second) cell number?

Backstory - I own my own business, we havent had any social media presence with it at all up to this point, no FB profile, no Instagram, etc. I do have those personally however. We are now going to set up FB, Instagram, etc for the business --------- but should I get a cell number just for those business accounts? Is it a bad idea to tie social media for my business to my personal cell phone number? I dont want to mix my personal and my business social media profiles but I also dont want to complicate my life by having 2 cell phone numbers if a single phone number can effectively be used for both personal and business profiles. Any advise?