12513755125 has 8 divisors (see below), whose sum is σ = 15617166552. Its totient is φ = 10011004000.

The previous prime is 12513755117. The next prime is 12513755159. The reversal of 12513755125 is 52155731521.

It can be written as a sum of positive squares in 4 ways, for example, as 78605956 + 12435149169 = 8866^2 + 111513^2 .

It is not a de Polignac number, because 12513755125 - 2³ = 12513755117 is a prime.

It is a Duffinian number.

It is a congruent 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, 50054896 + ... + 50055145.

It is an arithmetic number, because the mean of its divisors is an integer number (1952145819).

Almost surely, 2^12513755125 is an apocalyptic number.

It is an amenable number.

12513755125 is a deficient number, since it is larger than the sum of its proper divisors (3103411427).

12513755125 is an equidigital number, since it uses as much as digits as its factorization.

12513755125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100110056 (or 100110046 counting only the distinct ones).

The product of its digits is 52500, while the sum is 37.

The spelling of 12513755125 in words is "twelve billion, five hundred thirteen million, seven hundred fifty-five thousand, one hundred twenty-five".