A Bitcoin address contains a checksum, so even if you change just a single character the address will be detected as invalid and sending to it not possible.

Your wallet will also generate a new address every time you make a transfer from it with a change. So there is not really a reason not to use a new address every time.

City of God

Not necessarily academic books on math (I think you could try out some Coursera courses on math for that as wel).

If you are a developer and want to better understand algorithms both from the theory and practically on how to apply them when, then I can recommend this book: https://www.amazon.com/Algorithm-Design-Manual-Steven-Skiena/dp/1849967202

For general curiousity regarding math these are recommended:

https://www.math.ias.edu/avi/book https://press.princeton.edu/books/paperback/9780691164076/how-to-solve-it https://www.amazon.com/Book-Proof-Richard-Hammack/dp/0989472108/ https://www.amazon.com/Introduction-Mathematical-Reasoning-Numbers-Functions/dp/0521597188 https://www.amazon.com/How-Prove-Structured-Approach-2nd/dp/0521675995/ref=pd_sim_14_3?_encoding=UTF8&psc=1&refRID=M5WBGMT35PP5G3CJT8Q https://www.amazon.com/How-Study-as-Mathematics-Major/dp/0199661316/ref=pd_sim_14_19?_encoding=UTF8&psc=1&refRID=M5WBGMT35PP5G3CJT8QPP https://www.amazon.com/Pea-Sun-Mathematical-Paradox/dp/1568813279

Maybe some among them that you will find interesting :)