625125637625 has 8 divisors (see below), whose sum is σ = 780156795912. Its totient is φ = 500100510000.

The previous prime is 625125637523. The next prime is 625125637651. The reversal of 625125637625 is 526736521526.

625125637625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 75420538384 + 549705099241 = 274628^2 + 741421^2 .

It is not a de Polignac number, because 625125637625 - 2¹⁸ = 625125375481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2500502426 + ... + 2500502675.

It is an arithmetic number, because the mean of its divisors is an integer number (97519599489).

Almost surely, 2^625125637625 is an apocalyptic number.

It is an amenable number.

625125637625 is a deficient number, since it is larger than the sum of its proper divisors (155031158287).

625125637625 is an equidigital number, since it uses as much as digits as its factorization.

625125637625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001005116 (or 5001005106 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 50.

The spelling of 625125637625 in words is "six hundred twenty-five billion, one hundred twenty-five million, six hundred thirty-seven thousand, six hundred twenty-five".