22965557 has 2 divisors, whose sum is σ = 22965558. Its totient is φ = 22965556.

The previous prime is 22965529. The next prime is 22965583. The reversal of 22965557 is 75556922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16982641 + 5982916 = 4121^2 + 2446^2 .

It is a cyclic number.

It is not a de Polignac number, because 22965557 - 2⁸ = 22965301 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 (22965587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11482778 + 11482779.

It is an arithmetic number, because the mean of its divisors is an integer number (11482779).

Almost surely, 2^22965557 is an apocalyptic number.

It is an amenable number.

22965557 is a deficient number, since it is larger than the sum of its proper divisors (1).

22965557 is an equidigital number, since it uses as much as digits as its factorization.

22965557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 41.

The square root of 22965557 is about 4792.2392469492. The cubic root of 22965557 is about 284.2446686434.

The spelling of 22965557 in words is "twenty-two million, nine hundred sixty-five thousand, five hundred fifty-seven".