625631325137 has 16 divisors (see below), whose sum is σ = 770058949632. Its totient is φ = 494972112960.

The previous prime is 625631325131. The next prime is 625631325161. The reversal of 625631325137 is 731523136526.

It is a happy number.

It is not a de Polignac number, because 625631325137 - 2⁶ = 625631325073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625631325131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197248 + ... + 1638494.

It is an arithmetic number, because the mean of its divisors is an integer number (48128684352).

Almost surely, 2^625631325137 is an apocalyptic number.

It is an amenable number.

625631325137 is a deficient number, since it is larger than the sum of its proper divisors (144427624495).

625631325137 is a wasteful number, since it uses less digits than its factorization.

625631325137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456848.

The product of its digits is 680400, while the sum is 44.

The spelling of 625631325137 in words is "six hundred twenty-five billion, six hundred thirty-one million, three hundred twenty-five thousand, one hundred thirty-seven".