45172999925 has 24 divisors (see below), whose sum is σ = 59028721920. Its totient is φ = 34224872000.

The previous prime is 45172999919. The next prime is 45172999931. The reversal of 45172999925 is 52999927154.

It is an interprime number because it is at equal distance from previous prime (45172999919) and next prime (45172999931).

It is a de Polignac number, because none of the positive numbers 2^k-45172999925 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 330845 + ... + 446994.

It is an arithmetic number, because the mean of its divisors is an integer number (2459530080).

Almost surely, 2^45172999925 is an apocalyptic number.

It is an amenable number.

45172999925 is a deficient number, since it is larger than the sum of its proper divisors (13855721995).

45172999925 is a wasteful number, since it uses less digits than its factorization.

45172999925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777973 (or 777968 counting only the distinct ones).

The product of its digits is 18370800, while the sum is 62.

The spelling of 45172999925 in words is "forty-five billion, one hundred seventy-two million, nine hundred ninety-nine thousand, nine hundred twenty-five".