25257567463172 has 48 divisors (see below), whose sum is σ = 48441309633024. Its totient is φ = 11427792768000.

The previous prime is 25257567463127. The next prime is 25257567463187. The reversal of 25257567463172 is 27136476575252.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79918022 + ... + 80233442.

It is an arithmetic number, because the mean of its divisors is an integer number (1009193950688).

Almost surely, 2^{25257567463172} is an apocalyptic number.

25257567463172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25257567463172 is a deficient number, since it is larger than the sum of its proper divisors (23183742169852).

25257567463172 is a wasteful number, since it uses less digits than its factorization.

25257567463172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323820 (or 323818 counting only the distinct ones).

The product of its digits is 148176000, while the sum is 62.

The spelling of 25257567463172 in words is "twenty-five trillion, two hundred fifty-seven billion, five hundred sixty-seven million, four hundred sixty-three thousand, one hundred seventy-two".