22957591 has 2 divisors, whose sum is σ = 22957592. Its totient is φ = 22957590.

The previous prime is 22957559. The next prime is 22957601. The reversal of 22957591 is 19575922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22957591 - 2⁵ = 22957559 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22957511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11478795 + 11478796.

It is an arithmetic number, because the mean of its divisors is an integer number (11478796).

Almost surely, 2^22957591 is an apocalyptic number.

22957591 is a deficient number, since it is larger than the sum of its proper divisors (1).

22957591 is an equidigital number, since it uses as much as digits as its factorization.

22957591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 40.

The square root of 22957591 is about 4791.4080393972. The cubic root of 22957591 is about 284.2117997855.

The spelling of 22957591 in words is "twenty-two million, nine hundred fifty-seven thousand, five hundred ninety-one".