12500125137625 has 8 divisors (see below), whose sum is σ = 15600156171912. Its totient is φ = 10000100110000.

The previous prime is 12500125137613. The next prime is 12500125137631. The reversal of 12500125137625 is 52673152100521.

It can be written as a sum of positive squares in 4 ways, for example, as 1629105060496 + 10871020077129 = 1276364^2 + 3297123^2 .

It is not a de Polignac number, because 12500125137625 - 2¹¹ = 12500125135577 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, 50000500426 + ... + 50000500675.

It is an arithmetic number, because the mean of its divisors is an integer number (1950019521489).

Almost surely, 2^{12500125137625} is an apocalyptic number.

It is an amenable number.

12500125137625 is a deficient number, since it is larger than the sum of its proper divisors (3100031034287).

12500125137625 is an equidigital number, since it uses as much as digits as its factorization.

12500125137625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100001001116 (or 100001001106 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 12500125137625 in words is "twelve trillion, five hundred billion, one hundred twenty-five million, one hundred thirty-seven thousand, six hundred twenty-five".