715521625 has 32 divisors (see below), whose sum is σ = 1099058688. Its totient is φ = 452894400.

The previous prime is 715521623. The next prime is 715521629. The reversal of 715521625 is 526125517.

It is not a de Polignac number, because 715521625 - 2¹ = 715521623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (715521623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20077 + ... + 42826.

It is an arithmetic number, because the mean of its divisors is an integer number (34345584).

Almost surely, 2^715521625 is an apocalyptic number.

It is an amenable number.

715521625 is a deficient number, since it is larger than the sum of its proper divisors (383537063).

715521625 is a wasteful number, since it uses less digits than its factorization.

715521625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62938 (or 62928 counting only the distinct ones).

The product of its digits is 21000, while the sum is 34.

The square root of 715521625 is about 26749.2359703974. The cubic root of 715521625 is about 894.4188043380.

The spelling of 715521625 in words is "seven hundred fifteen million, five hundred twenty-one thousand, six hundred twenty-five".