25318992 has 40 divisors (see below), whose sum is σ = 65594016. Its totient is φ = 8415616.

The previous prime is 25318991. The next prime is 25319003. The reversal of 25318992 is 29981352.

It is a self number, because there is not a number n which added to its sum of digits gives 25318992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25318991) 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, 26263 + ... + 27209.

Almost surely, 2^25318992 is an apocalyptic number.

It is an amenable number.

25318992 is an abundant number, since it is smaller than the sum of its proper divisors (40275024).

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

25318992 is a wasteful number, since it uses less digits than its factorization.

25318992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515 (or 1509 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 25318992 is about 5031.7980881589. The cubic root of 25318992 is about 293.6401724933.

The spelling of 25318992 in words is "twenty-five million, three hundred eighteen thousand, nine hundred ninety-two".