13572564 has 12 divisors (see below), whose sum is σ = 31669344. Its totient is φ = 4524184.

The previous prime is 13572547. The next prime is 13572569. The reversal of 13572564 is 46527531.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13572569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565512 + ... + 565535.

It is an arithmetic number, because the mean of its divisors is an integer number (2639112).

Almost surely, 2^13572564 is an apocalyptic number.

It is an amenable number.

13572564 is an abundant number, since it is smaller than the sum of its proper divisors (18096780).

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

13572564 is a wasteful number, since it uses less digits than its factorization.

13572564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131054 (or 1131052 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 13572564 is about 3684.0960899521. The cubic root of 13572564 is about 238.5360185395.

The spelling of 13572564 in words is "thirteen million, five hundred seventy-two thousand, five hundred sixty-four".