The Andersons Professional PGF Complete 16-4-8 Fertilizer with Humic (40lb)

Can i safely add this to my normal lawn care treatments? in other words, if i'm putting weed and feed down in may, can i also add this as well?

Is this product organic or natural ? would the product burn the lawn grass if putting too much? Thanks!

4.5 setting on my Scott's edgeguard for the 18 pound bag only got me coverage of barely 3,000 square feet. I don't see how that would treat 5k sq ft?

Can I put down lime at the same time or when should I do it?