25971372 has 54 divisors (see below), whose sum is σ = 76373388. Its totient is φ = 7419888.

The previous prime is 25971353. The next prime is 25971377. The reversal of 25971372 is 27317952.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25971377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5598 + ... + 9125.

It is an arithmetic number, because the mean of its divisors is an integer number (1414322).

Almost surely, 2^25971372 is an apocalyptic number.

It is an amenable number.

25971372 is an abundant number, since it is smaller than the sum of its proper divisors (50402016).

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

25971372 is a wasteful number, since it uses less digits than its factorization.

25971372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14747 (or 14735 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 25971372 is about 5096.2115340712. The cubic root of 25971372 is about 296.1408357073.

It can be divided in two parts, 2597 and 1372, that added together give a square (3969 = 63²).

The spelling of 25971372 in words is "twenty-five million, nine hundred seventy-one thousand, three hundred seventy-two".