25135916 has 36 divisors (see below), whose sum is σ = 49046256. Its totient is φ = 11204640.

The previous prime is 25135897. The next prime is 25135933. The reversal of 25135916 is 61953152.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49721 + ... + 50223.

It is an arithmetic number, because the mean of its divisors is an integer number (1362396).

Almost surely, 2^25135916 is an apocalyptic number.

25135916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25135916 is a deficient number, since it is larger than the sum of its proper divisors (23910340).

25135916 is a wasteful number, since it uses less digits than its factorization.

25135916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582 (or 549 counting only the distinct ones).

The product of its digits is 8100, while the sum is 32.

The square root of 25135916 is about 5013.5731768869. The cubic root of 25135916 is about 292.9307108227.

The spelling of 25135916 in words is "twenty-five million, one hundred thirty-five thousand, nine hundred sixteen".