25072992 has 72 divisors (see below), whose sum is σ = 81493776. Its totient is φ = 7163136.

The previous prime is 25072987. The next prime is 25073003. The reversal of 25072992 is 29927052.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4203 + ... + 8234.

It is an arithmetic number, because the mean of its divisors is an integer number (1131858).

Almost surely, 2^25072992 is an apocalyptic number.

It is an amenable number.

25072992 is an abundant number, since it is smaller than the sum of its proper divisors (56420784).

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

25072992 is a wasteful number, since it uses less digits than its factorization.

25072992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12460 (or 12449 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 25072992 is about 5007.2938799316. The cubic root of 25072992 is about 292.6860705191.

The spelling of 25072992 in words is "twenty-five million, seventy-two thousand, nine hundred ninety-two".