22565423 has 2 divisors, whose sum is σ = 22565424. Its totient is φ = 22565422.

The previous prime is 22565383. The next prime is 22565441. The reversal of 22565423 is 32456522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22565423 - 2⁶ = 22565359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22565623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11282711 + 11282712.

It is an arithmetic number, because the mean of its divisors is an integer number (11282712).

Almost surely, 2^22565423 is an apocalyptic number.

22565423 is a deficient number, since it is larger than the sum of its proper divisors (1).

22565423 is an equidigital number, since it uses as much as digits as its factorization.

22565423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 29.

The square root of 22565423 is about 4750.3076742460. The cubic root of 22565423 is about 282.5841678879.

The spelling of 22565423 in words is "twenty-two million, five hundred sixty-five thousand, four hundred twenty-three".