25732164 has 24 divisors (see below), whose sum is σ = 62112960. Its totient is φ = 8281504.

The previous prime is 25732159. The next prime is 25732177. The reversal of 25732164 is 46123752.

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, 36624 + ... + 37319.

It is an arithmetic number, because the mean of its divisors is an integer number (2588040).

Almost surely, 2^25732164 is an apocalyptic number.

It is an amenable number.

25732164 is an abundant number, since it is smaller than the sum of its proper divisors (36380796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25732164 is a wasteful number, since it uses less digits than its factorization.

25732164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73979 (or 73977 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 25732164 is about 5072.6880448141. The cubic root of 25732164 is about 295.2288332674.

The spelling of 25732164 in words is "twenty-five million, seven hundred thirty-two thousand, one hundred sixty-four".