12613653225 has 18 divisors (see below), whose sum is σ = 22592454846. Its totient is φ = 6727281600.

The previous prime is 12613653181. The next prime is 12613653233. The reversal of 12613653225 is 52235631621.

12613653225 is a `hidden beast` number, since 1 + 2 + 613 + 6 + 5 + 32 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 3170478249 + 9443174976 = 56307^2 + 97176^2 .

It is not a de Polignac number, because 12613653225 - 2¹⁰ = 12613652201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12613653225.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28030116 + ... + 28030565.

Almost surely, 2^12613653225 is an apocalyptic number.

12613653225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12613653225 is a deficient number, since it is larger than the sum of its proper divisors (9978801621).

12613653225 is a wasteful number, since it uses less digits than its factorization.

12613653225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56060697 (or 56060689 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The spelling of 12613653225 in words is "twelve billion, six hundred thirteen million, six hundred fifty-three thousand, two hundred twenty-five".