22559091 has 4 divisors (see below), whose sum is σ = 30078792. Its totient is φ = 15039392.

The previous prime is 22559087. The next prime is 22559149. The reversal of 22559091 is 19095522.

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 22559091 - 2² = 22559087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22559491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3759846 + ... + 3759851.

It is an arithmetic number, because the mean of its divisors is an integer number (7519698).

Almost surely, 2^22559091 is an apocalyptic number.

22559091 is a deficient number, since it is larger than the sum of its proper divisors (7519701).

22559091 is an equidigital number, since it uses as much as digits as its factorization.

22559091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7519700.

The product of its (nonzero) digits is 8100, while the sum is 33.

The square root of 22559091 is about 4749.6411443392. The cubic root of 22559091 is about 282.5577337820.

The spelling of 22559091 in words is "twenty-two million, five hundred fifty-nine thousand, ninety-one".