12653564 has 36 divisors (see below), whose sum is σ = 28105560. Its totient is φ = 4929120.

The previous prime is 12653551. The next prime is 12653579. The reversal of 12653564 is 46535621.

12653564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12653564² = 320225363804192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12653564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 779 + ... + 5090.

It is an arithmetic number, because the mean of its divisors is an integer number (780710).

Almost surely, 2^12653564 is an apocalyptic number.

12653564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12653564 is an abundant number, since it is smaller than the sum of its proper divisors (15451996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12653564 is a wasteful number, since it uses less digits than its factorization.

12653564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898 (or 5889 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 12653564 is about 3557.1848419783. The cubic root of 12653564 is about 233.0259508019.

The spelling of 12653564 in words is "twelve million, six hundred fifty-three thousand, five hundred sixty-four".