13065564 has 24 divisors (see below), whose sum is σ = 31812480. Its totient is φ = 4165744.

The previous prime is 13065557. The next prime is 13065581. The reversal of 13065564 is 46556031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23394 + ... + 23945.

It is an arithmetic number, because the mean of its divisors is an integer number (1325520).

Almost surely, 2^13065564 is an apocalyptic number.

It is an amenable number.

13065564 is an abundant number, since it is smaller than the sum of its proper divisors (18746916).

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

13065564 is a wasteful number, since it uses less digits than its factorization.

13065564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47369 (or 47367 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 13065564 is about 3614.6319314696. The cubic root of 13065564 is about 235.5280956018.

The spelling of 13065564 in words is "thirteen million, sixty-five thousand, five hundred sixty-four".