25655400522 has 48 divisors (see below), whose sum is σ = 58549851360. Its totient is φ = 8096508576.

The previous prime is 25655400509. The next prime is 25655400527. The reversal of 25655400522 is 22500455652.

25655400522 is a `hidden beast` number, since 2 + 5 + 65 + 540 + 0 + 52 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (25655400527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 528393 + ... + 574899.

It is an arithmetic number, because the mean of its divisors is an integer number (1219788570).

Almost surely, 2^25655400522 is an apocalyptic number.

25655400522 is an abundant number, since it is smaller than the sum of its proper divisors (32894450838).

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

25655400522 is a wasteful number, since it uses less digits than its factorization.

25655400522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48147 (or 48144 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 25655400522 in words is "twenty-five billion, six hundred fifty-five million, four hundred thousand, five hundred twenty-two".