12515252640125 has 16 divisors (see below), whose sum is σ = 16441089787200. Its totient is φ = 9485244104400.

The previous prime is 12515252640119. The next prime is 12515252640127. The reversal of 12515252640125 is 52104625251521.

It is a de Polignac number, because none of the positive numbers 2^k-12515252640125 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515252640127) 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, 2634787655 + ... + 2634792404.

It is an arithmetic number, because the mean of its divisors is an integer number (1027568111700).

Almost surely, 2^{12515252640125} is an apocalyptic number.

It is an amenable number.

12515252640125 is a deficient number, since it is larger than the sum of its proper divisors (3925837147075).

12515252640125 is an equidigital number, since it uses as much as digits as its factorization.

12515252640125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5269580093 (or 5269580083 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 41.

Adding to 12515252640125 its reverse (52104625251521), we get a palindrome (64619877891646).

The spelling of 12515252640125 in words is "twelve trillion, five hundred fifteen billion, two hundred fifty-two million, six hundred forty thousand, one hundred twenty-five".