22564975 has 6 divisors (see below), whose sum is σ = 27980600. Its totient is φ = 18051960.

The previous prime is 22564943. The next prime is 22564991. The reversal of 22564975 is 57946522.

It is not a de Polignac number, because 22564975 - 2⁵ = 22564943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451275 + ... + 451324.

Almost surely, 2^22564975 is an apocalyptic number.

22564975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22564975 is a deficient number, since it is larger than the sum of its proper divisors (5415625).

22564975 is an equidigital number, since it uses as much as digits as its factorization.

22564975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902609 (or 902604 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 22564975 is about 4750.2605191716. The cubic root of 22564975 is about 282.5822977916.

The spelling of 22564975 in words is "twenty-two million, five hundred sixty-four thousand, nine hundred seventy-five".