25566530130 has 24 divisors (see below), whose sum is σ = 66472978572. Its totient is φ = 6817741344.

The previous prime is 25566530111. The next prime is 25566530159. The reversal of 25566530130 is 3103566552.

25566530130 is a `hidden beast` number, since 2 + 55 + 66 + 530 + 13 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 20762792649 + 4803737481 = 144093^2 + 69309^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142036189 + ... + 142036368.

Almost surely, 2^25566530130 is an apocalyptic number.

25566530130 is an abundant number, since it is smaller than the sum of its proper divisors (40906448442).

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

25566530130 is a wasteful number, since it uses less digits than its factorization.

25566530130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284072570 (or 284072567 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 25566530130 in words is "twenty-five billion, five hundred sixty-six million, five hundred thirty thousand, one hundred thirty".