12539037625 has 16 divisors (see below), whose sum is σ = 15653843712. Its totient is φ = 10027945200.

The previous prime is 12539037601. The next prime is 12539037629. The reversal of 12539037625 is 52673093521.

It is a de Polignac number, because none of the positive numbers 2^k-12539037625 is a prime.

It is a super-2 number, since 2×12539037625² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12539037629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411154 + ... + 440596.

It is an arithmetic number, because the mean of its divisors is an integer number (978365232).

Almost surely, 2^12539037625 is an apocalyptic number.

It is an amenable number.

12539037625 is a deficient number, since it is larger than the sum of its proper divisors (3114806087).

12539037625 is an equidigital number, since it uses as much as digits as its factorization.

12539037625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32865 (or 32855 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 43.

The spelling of 12539037625 in words is "twelve billion, five hundred thirty-nine million, thirty-seven thousand, six hundred twenty-five".