25288475364 has 18 divisors (see below), whose sum is σ = 63923646150. Its totient is φ = 8429491776.

The previous prime is 25288475351. The next prime is 25288475453. The reversal of 25288475364 is 46357488252.

25288475364 is a `hidden beast` number, since 2 + 5 + 28 + 84 + 7 + 536 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20417552100 + 4870923264 = 142890^2 + 69792^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25288475364.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 351228789 + ... + 351228860.

It is an arithmetic number, because the mean of its divisors is an integer number (3551313675).

Almost surely, 2^25288475364 is an apocalyptic number.

It is an amenable number.

25288475364 is an abundant number, since it is smaller than the sum of its proper divisors (38635170786).

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

25288475364 is a wasteful number, since it uses less digits than its factorization.

25288475364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702457659 (or 702457654 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 54.

The spelling of 25288475364 in words is "twenty-five billion, two hundred eighty-eight million, four hundred seventy-five thousand, three hundred sixty-four".