25135247204656 has 10 divisors (see below), whose sum is σ = 48699541459052. Its totient is φ = 12567623602320.

The previous prime is 25135247204653. The next prime is 25135247204719. The reversal of 25135247204656 is 65640274253152.

It is not an unprimeable number, because it can be changed into a prime (25135247204653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 785476475130 + ... + 785476475161.

Almost surely, 2^{25135247204656} is an apocalyptic number.

It is an amenable number.

25135247204656 is a deficient number, since it is larger than the sum of its proper divisors (23564294254396).

25135247204656 is a wasteful number, since it uses less digits than its factorization.

25135247204656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570952950299 (or 1570952950293 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 52.

The spelling of 25135247204656 in words is "twenty-five trillion, one hundred thirty-five billion, two hundred forty-seven million, two hundred four thousand, six hundred fifty-six".