22564057 has 4 divisors (see below), whose sum is σ = 22662820. Its totient is φ = 22465296.

The previous prime is 22564033. The next prime is 22564067. The reversal of 22564057 is 75046522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19193161 + 3370896 = 4381^2 + 1836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22564057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22564007) 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, 49038 + ... + 49495.

It is an arithmetic number, because the mean of its divisors is an integer number (5665705).

Almost surely, 2^22564057 is an apocalyptic number.

It is an amenable number.

22564057 is a deficient number, since it is larger than the sum of its proper divisors (98763).

22564057 is an equidigital number, since it uses as much as digits as its factorization.

22564057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98762.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 22564057 is about 4750.1638919094. The cubic root of 22564057 is about 282.5784656865.

The spelling of 22564057 in words is "twenty-two million, five hundred sixty-four thousand, fifty-seven".