25251764928 has 56 divisors (see below), whose sum is σ = 71951350128. Its totient is φ = 7769773056.

The previous prime is 25251764911. The next prime is 25251764957. The reversal of 25251764928 is 82946715252.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5055951 + ... + 5060942.

It is an arithmetic number, because the mean of its divisors is an integer number (1284845538).

Almost surely, 2^25251764928 is an apocalyptic number.

It is an amenable number.

25251764928 is an abundant number, since it is smaller than the sum of its proper divisors (46699585200).

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

25251764928 is a wasteful number, since it uses less digits than its factorization.

25251764928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10116921 (or 10116911 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 51.

The spelling of 25251764928 in words is "twenty-five billion, two hundred fifty-one million, seven hundred sixty-four thousand, nine hundred twenty-eight".