25662472 has 16 divisors (see below), whose sum is σ = 52491600. Its totient is φ = 11664720.

The previous prime is 25662467. The next prime is 25662479. The reversal of 25662472 is 27426652.

It is not an unprimeable number, because it can be changed into a prime (25662479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145722 + ... + 145897.

It is an arithmetic number, because the mean of its divisors is an integer number (3280725).

Almost surely, 2^25662472 is an apocalyptic number.

25662472 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25662472 is an abundant number, since it is smaller than the sum of its proper divisors (26829128).

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

25662472 is a wasteful number, since it uses less digits than its factorization.

25662472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291636 (or 291632 counting only the distinct ones).

The product of its digits is 40320, while the sum is 34.

The square root of 25662472 is about 5065.8140510682. The cubic root of 25662472 is about 294.9620634928.

The spelling of 25662472 in words is "twenty-five million, six hundred sixty-two thousand, four hundred seventy-two".