625431020522 has 80 divisors (see below), whose sum is σ = 1221703968672. Its totient is φ = 238006712160.

The previous prime is 625431020497. The next prime is 625431020573. The reversal of 625431020522 is 225020134526.

It is a super-2 number, since 2×625431020522² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2133668 + ... + 2409024.

Almost surely, 2^625431020522 is an apocalyptic number.

625431020522 is a deficient number, since it is larger than the sum of its proper divisors (596272948150).

625431020522 is a wasteful number, since it uses less digits than its factorization.

625431020522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275441 (or 275420 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 625431020522 in words is "six hundred twenty-five billion, four hundred thirty-one million, twenty thousand, five hundred twenty-two".