25287062280 has 64 divisors (see below), whose sum is σ = 76993467840. Its totient is φ = 6642569472.

The previous prime is 25287062261. The next prime is 25287062309. The reversal of 25287062280 is 8226078252.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1564539 + ... + 1580618.

It is an arithmetic number, because the mean of its divisors is an integer number (1203022935).

Almost surely, 2^25287062280 is an apocalyptic number.

25287062280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25287062280 is an abundant number, since it is smaller than the sum of its proper divisors (51706405560).

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

25287062280 is a wasteful number, since it uses less digits than its factorization.

25287062280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145238 (or 3145234 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 25287062280 in words is "twenty-five billion, two hundred eighty-seven million, sixty-two thousand, two hundred eighty".