25617672982 has 16 divisors (see below), whose sum is σ = 44126136000. Its totient is φ = 11031533640.

The previous prime is 25617672979. The next prime is 25617673021. The reversal of 25617672982 is 28927671652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30642732 + ... + 30643567.

It is an arithmetic number, because the mean of its divisors is an integer number (2757883500).

Almost surely, 2^25617672982 is an apocalyptic number.

25617672982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25617672982 is a deficient number, since it is larger than the sum of its proper divisors (18508463018).

25617672982 is a wasteful number, since it uses less digits than its factorization.

25617672982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61286331.

The product of its digits is 5080320, while the sum is 55.

The spelling of 25617672982 in words is "twenty-five billion, six hundred seventeen million, six hundred seventy-two thousand, nine hundred eighty-two".