25865472 has 36 divisors (see below), whose sum is σ = 68841920. Its totient is φ = 8621568.

The previous prime is 25865459. The next prime is 25865503. The reversal of 25865472 is 27456852.

It is a self number, because there is not a number n which added to its sum of digits gives 25865472.

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, 16072 + ... + 17607.

Almost surely, 2^25865472 is an apocalyptic number.

It is an amenable number.

25865472 is an abundant number, since it is smaller than the sum of its proper divisors (42976448).

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

25865472 is an equidigital number, since it uses as much as digits as its factorization.

25865472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33698 (or 33684 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 25865472 is about 5085.8108498056. The cubic root of 25865472 is about 295.7377760451.

The spelling of 25865472 in words is "twenty-five million, eight hundred sixty-five thousand, four hundred seventy-two".