25658972 has 12 divisors (see below), whose sum is σ = 44955456. Its totient is φ = 12814560.

The previous prime is 25658957. The next prime is 25658993. The reversal of 25658972 is 27985652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728 + ... + 7200.

It is an arithmetic number, because the mean of its divisors is an integer number (3746288).

Almost surely, 2^25658972 is an apocalyptic number.

It is an amenable number.

25658972 is a deficient number, since it is larger than the sum of its proper divisors (19296484).

25658972 is a wasteful number, since it uses less digits than its factorization.

25658972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7468 (or 7466 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 25658972 is about 5065.4685864192. The cubic root of 25658972 is about 294.9486533251.

The spelling of 25658972 in words is "twenty-five million, six hundred fifty-eight thousand, nine hundred seventy-two".