25231764 has 12 divisors (see below), whose sum is σ = 58874144. Its totient is φ = 8410584.

The previous prime is 25231747. The next prime is 25231771. The reversal of 25231764 is 46713252.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051312 + ... + 1051335.

Almost surely, 2^25231764 is an apocalyptic number.

It is an amenable number.

25231764 is an abundant number, since it is smaller than the sum of its proper divisors (33642380).

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

25231764 is a wasteful number, since it uses less digits than its factorization.

25231764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102654 (or 2102652 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 25231764 is about 5023.1229329970. The cubic root of 25231764 is about 293.3025719579.

The spelling of 25231764 in words is "twenty-five million, two hundred thirty-one thousand, seven hundred sixty-four".