25513477264 has 30 divisors (see below), whose sum is σ = 54334749350. Its totient is φ = 11597034240.

The previous prime is 25513477219. The next prime is 25513477309. The reversal of 25513477264 is 46277431552.

It is an interprime number because it is at equal distance from previous prime (25513477219) and next prime (25513477309).

It can be written as a sum of positive squares in only one way, i.e., 25300083600 + 213393664 = 159060^2 + 14608^2 .

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, 6587289 + ... + 6591160.

Almost surely, 2^25513477264 is an apocalyptic number.

It is an amenable number.

25513477264 is an abundant number, since it is smaller than the sum of its proper divisors (28821272086).

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

25513477264 is a wasteful number, since it uses less digits than its factorization.

25513477264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13178479 (or 13178462 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 46.

The spelling of 25513477264 in words is "twenty-five billion, five hundred thirteen million, four hundred seventy-seven thousand, two hundred sixty-four".