12513875125 has 8 divisors (see below), whose sum is σ = 15617316312. Its totient is φ = 10011100000.

The previous prime is 12513875123. The next prime is 12513875177. The reversal of 12513875125 is 52157831521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1364415844 + 11149459281 = 36938^2 + 105591^2 .

It is not a de Polignac number, because 12513875125 - 2¹ = 12513875123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513875123) 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, 50055376 + ... + 50055625.

It is an arithmetic number, because the mean of its divisors is an integer number (1952164539).

Almost surely, 2^12513875125 is an apocalyptic number.

It is an amenable number.

12513875125 is a deficient number, since it is larger than the sum of its proper divisors (3103441187).

12513875125 is an equidigital number, since it uses as much as digits as its factorization.

12513875125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100111016 (or 100111006 counting only the distinct ones).

The product of its digits is 84000, while the sum is 40.

The spelling of 12513875125 in words is "twelve billion, five hundred thirteen million, eight hundred seventy-five thousand, one hundred twenty-five".