25315337880 has 96 divisors (see below), whose sum is σ = 94028407200. Its totient is φ = 5786362368.

The previous prime is 25315337869. The next prime is 25315337881. The reversal of 25315337880 is 8873351352.

25315337880 is a `hidden beast` number, since 2 + 5 + 31 + 533 + 7 + 8 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25315337881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5020365 + ... + 5025404.

It is an arithmetic number, because the mean of its divisors is an integer number (979462575).

Almost surely, 2^25315337880 is an apocalyptic number.

25315337880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25315337880 is an abundant number, since it is smaller than the sum of its proper divisors (68713069320).

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

25315337880 is a wasteful number, since it uses less digits than its factorization.

25315337880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10045793 (or 10045786 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 25315337880 in words is "twenty-five billion, three hundred fifteen million, three hundred thirty-seven thousand, eight hundred eighty".