25542676172 has 24 divisors (see below), whose sum is σ = 48151733952. Its totient is φ = 11785593600.

The previous prime is 25542676139. The next prime is 25542676177. The reversal of 25542676172 is 27167624552.

It is not an unprimeable number, because it can be changed into a prime (25542676177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121172 + ... + 256452.

It is an arithmetic number, because the mean of its divisors is an integer number (2006322248).

Almost surely, 2^25542676172 is an apocalyptic number.

It is an amenable number.

25542676172 is a deficient number, since it is larger than the sum of its proper divisors (22609057780).

25542676172 is a wasteful number, since it uses less digits than its factorization.

25542676172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138929 (or 138927 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 47.

The spelling of 25542676172 in words is "twenty-five billion, five hundred forty-two million, six hundred seventy-six thousand, one hundred seventy-two".