22465591 has 2 divisors, whose sum is σ = 22465592. Its totient is φ = 22465590.

The previous prime is 22465589. The next prime is 22465603. The reversal of 22465591 is 19556422.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22465591 - 2¹ = 22465589 is a prime.

Together with 22465589, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22465501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11232795 + 11232796.

It is an arithmetic number, because the mean of its divisors is an integer number (11232796).

Almost surely, 2^22465591 is an apocalyptic number.

22465591 is a deficient number, since it is larger than the sum of its proper divisors (1).

22465591 is an equidigital number, since it uses as much as digits as its factorization.

22465591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 34.

The square root of 22465591 is about 4739.7880754312. The cubic root of 22465591 is about 282.1668236468.

The spelling of 22465591 in words is "twenty-two million, four hundred sixty-five thousand, five hundred ninety-one".