25679972 has 12 divisors (see below), whose sum is σ = 45264240. Its totient is φ = 12747336.

The previous prime is 25679959. The next prime is 25679989. The reversal of 25679972 is 27997652.

It is a happy 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, 22538 + ... + 23649.

It is an arithmetic number, because the mean of its divisors is an integer number (3772020).

Almost surely, 2^25679972 is an apocalyptic number.

It is an amenable number.

25679972 is a deficient number, since it is larger than the sum of its proper divisors (19584268).

25679972 is a wasteful number, since it uses less digits than its factorization.

25679972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46330 (or 46328 counting only the distinct ones).

The product of its digits is 476280, while the sum is 47.

The square root of 25679972 is about 5067.5410210476. The cubic root of 25679972 is about 295.0290960481.

The spelling of 25679972 in words is "twenty-five million, six hundred seventy-nine thousand, nine hundred seventy-two".