25913972 has 12 divisors (see below), whose sum is σ = 51828000. Its totient is φ = 11105976.

The previous prime is 25913963. The next prime is 25913981. The reversal of 25913972 is 27931952.

It is an interprime number because it is at equal distance from previous prime (25913963) and next prime (25913981).

25913972 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 462722 + ... + 462777.

It is an arithmetic number, because the mean of its divisors is an integer number (4319000).

Almost surely, 2^25913972 is an apocalyptic number.

It is an amenable number.

25913972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25913972 is a wasteful number, since it uses less digits than its factorization.

25913972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925510 (or 925508 counting only the distinct ones).

The product of its digits is 34020, while the sum is 38.

The square root of 25913972 is about 5090.5767846090. The cubic root of 25913972 is about 295.9225052793.

The spelling of 25913972 in words is "twenty-five million, nine hundred thirteen thousand, nine hundred seventy-two".