625531434646401 has 24 divisors (see below), whose sum is σ = 904559821890816. Its totient is φ = 416552787181440.

The previous prime is 625531434646397. The next prime is 625531434646423. The reversal of 625531434646401 is 104646434135526.

625531434646401 is a `hidden beast` number, since 6 + 2 + 5 + 53 + 143 + 4 + 6 + 46 + 401 = 666.

It is not a de Polignac number, because 625531434646401 - 2² = 625531434646397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625531434646441) 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, 334431081 + ... + 336296313.

It is an arithmetic number, because the mean of its divisors is an integer number (37689992578784).

Almost surely, 2^{625531434646401} is an apocalyptic number.

It is an amenable number.

625531434646401 is a deficient number, since it is larger than the sum of its proper divisors (279028387244415).

625531434646401 is a wasteful number, since it uses less digits than its factorization.

625531434646401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907053 (or 1907050 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 54.

The spelling of 625531434646401 in words is "six hundred twenty-five trillion, five hundred thirty-one billion, four hundred thirty-four million, six hundred forty-six thousand, four hundred one".