12653572 has 12 divisors (see below), whose sum is σ = 22285900. Its totient is φ = 6286176.

The previous prime is 12653551. The next prime is 12653579. The reversal of 12653572 is 27535621.

It can be written as a sum of positive squares in 2 ways, for example, as 4734976 + 7918596 = 2176^2 + 2814^2 .

It is a super-2 number, since 2×12653572² = 320225768718368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12653579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9447 + ... + 10702.

Almost surely, 2^12653572 is an apocalyptic number.

It is an amenable number.

12653572 is a deficient number, since it is larger than the sum of its proper divisors (9632328).

12653572 is a wasteful number, since it uses less digits than its factorization.

12653572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20310 (or 20308 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The square root of 12653572 is about 3557.1859664628. The cubic root of 12653572 is about 233.0259999107.

It can be divided in two parts, 12653 and 572, that added together give a square (13225 = 115²).

The spelling of 12653572 in words is "twelve million, six hundred fifty-three thousand, five hundred seventy-two".