25021230764 has 48 divisors (see below), whose sum is σ = 45092261760. Its totient is φ = 12142586880.

The previous prime is 25021230737. The next prime is 25021230809. The reversal of 25021230764 is 46703212052.

It is a self number, because there is not a number n which added to its sum of digits gives 25021230764.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15549992 + ... + 15551600.

It is an arithmetic number, because the mean of its divisors is an integer number (939422120).

Almost surely, 2^25021230764 is an apocalyptic number.

It is an amenable number.

25021230764 is a deficient number, since it is larger than the sum of its proper divisors (20071030996).

25021230764 is a wasteful number, since it uses less digits than its factorization.

25021230764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298 (or 2296 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 25021230764 in words is "twenty-five billion, twenty-one million, two hundred thirty thousand, seven hundred sixty-four".