25257979104 has 48 divisors (see below), whose sum is σ = 66333874320. Its totient is φ = 8415303680.

The previous prime is 25257979093. The next prime is 25257979127. The reversal of 25257979104 is 40197975252.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142594 + ... + 266174.

It is an arithmetic number, because the mean of its divisors is an integer number (1381955715).

Almost surely, 2^25257979104 is an apocalyptic number.

25257979104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25257979104 is an abundant number, since it is smaller than the sum of its proper divisors (41075895216).

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

25257979104 is a wasteful number, since it uses less digits than its factorization.

25257979104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125723 (or 125715 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 51.

The spelling of 25257979104 in words is "twenty-five billion, two hundred fifty-seven million, nine hundred seventy-nine thousand, one hundred four".