13565364625 has 16 divisors (see below), whose sum is σ = 17925435216. Its totient is φ = 10213920000.

The previous prime is 13565364623. The next prime is 13565364653. The reversal of 13565364625 is 52646356531.

It can be written as a sum of positive squares in 8 ways, for example, as 102171664 + 13463192961 = 10108^2 + 116031^2 .

It is not a de Polignac number, because 13565364625 - 2¹ = 13565364623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13565364623) 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, 3189726 + ... + 3193975.

It is an arithmetic number, because the mean of its divisors is an integer number (1120339701).

Almost surely, 2^13565364625 is an apocalyptic number.

It is an amenable number.

13565364625 is a deficient number, since it is larger than the sum of its proper divisors (4360070591).

13565364625 is an equidigital number, since it uses as much as digits as its factorization.

13565364625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6383733 (or 6383723 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 46.

The spelling of 13565364625 in words is "thirteen billion, five hundred sixty-five million, three hundred sixty-four thousand, six hundred twenty-five".