22564317 has 4 divisors (see below), whose sum is σ = 30085760. Its totient is φ = 15042876.

The previous prime is 22564303. The next prime is 22564319. The reversal of 22564317 is 71346522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22564317 - 2¹⁰ = 22563293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22564319) 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, 3760717 + ... + 3760722.

It is an arithmetic number, because the mean of its divisors is an integer number (7521440).

Almost surely, 2^22564317 is an apocalyptic number.

It is an amenable number.

22564317 is a deficient number, since it is larger than the sum of its proper divisors (7521443).

22564317 is an equidigital number, since it uses as much as digits as its factorization.

22564317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7521442.

The product of its digits is 10080, while the sum is 30.

The square root of 22564317 is about 4750.1912593074. The cubic root of 22564317 is about 282.5795510427.

The spelling of 22564317 in words is "twenty-two million, five hundred sixty-four thousand, three hundred seventeen".