25664732 has 12 divisors (see below), whose sum is σ = 44990400. Its totient is φ = 12810336.

The previous prime is 25664701. The next prime is 25664741. The reversal of 25664732 is 23746652.

It is a junction number, because it is equal to n+sod(n) for n = 25664692 and 25664701.

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, 2732 + ... + 7667.

It is an arithmetic number, because the mean of its divisors is an integer number (3749200).

Almost surely, 2^25664732 is an apocalyptic number.

It is an amenable number.

25664732 is a deficient number, since it is larger than the sum of its proper divisors (19325668).

25664732 is a wasteful number, since it uses less digits than its factorization.

25664732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11020 (or 11018 counting only the distinct ones).

The product of its digits is 60480, while the sum is 35.

The square root of 25664732 is about 5066.0371100102. The cubic root of 25664732 is about 294.9707219818.

The spelling of 25664732 in words is "twenty-five million, six hundred sixty-four thousand, seven hundred thirty-two".