625052357631 has 48 divisors (see below), whose sum is σ = 1057322395584. Its totient is φ = 352236874752.

The previous prime is 625052357627. The next prime is 625052357639. The reversal of 625052357631 is 136753250526.

625052357631 is a `hidden beast` number, since 6 + 2 + 5 + 0 + 5 + 2 + 3 + 5 + 7 + 631 = 666.

It is not a de Polignac number, because 625052357631 - 2² = 625052357627 is a prime.

It is a super-2 number, since 2×625052357631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625052357639) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4173091 + ... + 4320276.

It is an arithmetic number, because the mean of its divisors is an integer number (22027549908).

Almost surely, 2^625052357631 is an apocalyptic number.

625052357631 is a deficient number, since it is larger than the sum of its proper divisors (432270037953).

625052357631 is a wasteful number, since it uses less digits than its factorization.

625052357631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8493440 (or 8493437 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 45.

The spelling of 625052357631 in words is "six hundred twenty-five billion, fifty-two million, three hundred fifty-seven thousand, six hundred thirty-one".