22564465 has 64 divisors (see below), whose sum is σ = 36495360. Its totient is φ = 12983040.

The previous prime is 22564459. The next prime is 22564469. The reversal of 22564465 is 56446522.

It is a de Polignac number, because none of the positive numbers 2^k-22564465 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22564465.

It is not an unprimeable number, because it can be changed into a prime (22564469) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 480072 + ... + 480118.

It is an arithmetic number, because the mean of its divisors is an integer number (570240).

Almost surely, 2^22564465 is an apocalyptic number.

It is an amenable number.

22564465 is a deficient number, since it is larger than the sum of its proper divisors (13930895).

22564465 is a wasteful number, since it uses less digits than its factorization.

22564465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142.

The product of its digits is 57600, while the sum is 34.

The square root of 22564465 is about 4750.2068376019. The cubic root of 22564465 is about 282.5801688571.

The spelling of 22564465 in words is "twenty-two million, five hundred sixty-four thousand, four hundred sixty-five".