25131164 has 24 divisors (see below), whose sum is σ = 45239040. Its totient is φ = 12211056.

The previous prime is 25131133. The next prime is 25131187. The reversal of 25131164 is 46113152.

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, 20579 + ... + 21765.

It is an arithmetic number, because the mean of its divisors is an integer number (1884960).

Almost surely, 2^25131164 is an apocalyptic number.

It is an amenable number.

25131164 is a deficient number, since it is larger than the sum of its proper divisors (20107876).

25131164 is a wasteful number, since it uses less digits than its factorization.

25131164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337 (or 1335 counting only the distinct ones).

The product of its digits is 720, while the sum is 23.

The square root of 25131164 is about 5013.0992409886. The cubic root of 25131164 is about 292.9122499284.

The spelling of 25131164 in words is "twenty-five million, one hundred thirty-one thousand, one hundred sixty-four".