22565479 has 2 divisors, whose sum is σ = 22565480. Its totient is φ = 22565478.

The previous prime is 22565467. The next prime is 22565503. The reversal of 22565479 is 97456522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22565479 - 2⁵ = 22565447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22565779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11282739 + 11282740.

It is an arithmetic number, because the mean of its divisors is an integer number (11282740).

Almost surely, 2^22565479 is an apocalyptic number.

22565479 is a deficient number, since it is larger than the sum of its proper divisors (1).

22565479 is an equidigital number, since it uses as much as digits as its factorization.

22565479 is an evil number, because the sum of its binary digits is even.

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

The square root of 22565479 is about 4750.3135685973. The cubic root of 22565479 is about 282.5844016482.

The spelling of 22565479 in words is "twenty-two million, five hundred sixty-five thousand, four hundred seventy-nine".