12502515125 has 8 divisors (see below), whose sum is σ = 15603139032. Its totient is φ = 10002012000.

The previous prime is 12502515121. The next prime is 12502515131. The reversal of 12502515125 is 52151520521.

It can be written as a sum of positive squares in 4 ways, for example, as 3829876996 + 8672638129 = 61886^2 + 93127^2 .

It is not a de Polignac number, because 12502515125 - 2² = 12502515121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12502515121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50009936 + ... + 50010185.

It is an arithmetic number, because the mean of its divisors is an integer number (1950392379).

Almost surely, 2^12502515125 is an apocalyptic number.

It is an amenable number.

12502515125 is a deficient number, since it is larger than the sum of its proper divisors (3100623907).

12502515125 is an equidigital number, since it uses as much as digits as its factorization.

12502515125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100020136 (or 100020126 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 29.

The spelling of 12502515125 in words is "twelve billion, five hundred two million, five hundred fifteen thousand, one hundred twenty-five".