22965559 has 4 divisors (see below), whose sum is σ = 23106616. Its totient is φ = 22824504.

The previous prime is 22965557. The next prime is 22965583. The reversal of 22965559 is 95556922.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22965559 - 2¹ = 22965557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22965557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70284 + ... + 70609.

It is an arithmetic number, because the mean of its divisors is an integer number (5776654).

Almost surely, 2^22965559 is an apocalyptic number.

22965559 is a deficient number, since it is larger than the sum of its proper divisors (141057).

22965559 is a wasteful number, since it uses less digits than its factorization.

22965559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141056.

The product of its digits is 243000, while the sum is 43.

The square root of 22965559 is about 4792.2394556199. The cubic root of 22965559 is about 284.2446768947.

The spelling of 22965559 in words is "twenty-two million, nine hundred sixty-five thousand, five hundred fifty-nine".