625631256875 has 10 divisors (see below), whose sum is σ = 781788819372. Its totient is φ = 500505005000.

The previous prime is 625631256841. The next prime is 625631256881. The reversal of 625631256875 is 578652136526.

It is not a de Polignac number, because 625631256875 - 2³⁰ = 624557515051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 625631256875.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 500504381 + ... + 500505630.

Almost surely, 2^625631256875 is an apocalyptic number.

625631256875 is a deficient number, since it is larger than the sum of its proper divisors (156157562497).

625631256875 is an equidigital number, since it uses as much as digits as its factorization.

625631256875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001010031 (or 1001010016 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 56.

The spelling of 625631256875 in words is "six hundred twenty-five billion, six hundred thirty-one million, two hundred fifty-six thousand, eight hundred seventy-five".