12513445525 has 12 divisors (see below), whose sum is σ = 17733340192. Its totient is φ = 8580648240.

The previous prime is 12513445517. The next prime is 12513445531. The reversal of 12513445525 is 52554431521.

12513445525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12513445525 - 2³ = 12513445517 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35752527 + ... + 35752876.

Almost surely, 2^12513445525 is an apocalyptic number.

It is an amenable number.

12513445525 is a deficient number, since it is larger than the sum of its proper divisors (5219894667).

12513445525 is an equidigital number, since it uses as much as digits as its factorization.

12513445525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71505420 (or 71505415 counting only the distinct ones).

The product of its digits is 120000, while the sum is 37.

The spelling of 12513445525 in words is "twelve billion, five hundred thirteen million, four hundred forty-five thousand, five hundred twenty-five".