625864813638725 has 12 divisors (see below), whose sum is σ = 776083012359360. Its totient is φ = 500684984170800.

The previous prime is 625864813638709. The next prime is 625864813638737. The reversal of 625864813638725 is 527836318468526.

It is not a de Polignac number, because 625864813638725 - 2⁴ = 625864813638709 is a prime.

It is a congruent number.

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, 169808765 + ... + 173455314.

It is an arithmetic number, because the mean of its divisors is an integer number (64673584363280).

Almost surely, 2^{625864813638725} is an apocalyptic number.

It is an amenable number.

625864813638725 is a deficient number, since it is larger than the sum of its proper divisors (150218198720635).

625864813638725 is a wasteful number, since it uses less digits than its factorization.

625864813638725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343337020 (or 343337015 counting only the distinct ones).

The product of its digits is 2786918400, while the sum is 74.

The spelling of 625864813638725 in words is "six hundred twenty-five trillion, eight hundred sixty-four billion, eight hundred thirteen million, six hundred thirty-eight thousand, seven hundred twenty-five".