25057602172 has 36 divisors (see below), whose sum is σ = 45870018376. Its totient is φ = 11976291360.

The previous prime is 25057602109. The next prime is 25057602203. The reversal of 25057602172 is 27120675052.

It is a super-2 number, since 2×25057602172² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4506418 + ... + 4511974.

Almost surely, 2^25057602172 is an apocalyptic number.

It is an amenable number.

25057602172 is a deficient number, since it is larger than the sum of its proper divisors (20812416204).

25057602172 is a wasteful number, since it uses less digits than its factorization.

25057602172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7738 (or 7713 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 37.

The spelling of 25057602172 in words is "twenty-five billion, fifty-seven million, six hundred two thousand, one hundred seventy-two".