22559791 has 4 divisors (see below), whose sum is σ = 22627072. Its totient is φ = 22492512.

The previous prime is 22559777. The next prime is 22559819. The reversal of 22559791 is 19795522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19795522 = 2 ⋅9897761.

It is a cyclic number.

It is not a de Polignac number, because 22559791 - 2⁹ = 22559279 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 (22559741) 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, 33135 + ... + 33808.

It is an arithmetic number, because the mean of its divisors is an integer number (5656768).

Almost surely, 2^22559791 is an apocalyptic number.

22559791 is a deficient number, since it is larger than the sum of its proper divisors (67281).

22559791 is an equidigital number, since it uses as much as digits as its factorization.

22559791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67280.

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

The square root of 22559791 is about 4749.7148335453. The cubic root of 22559791 is about 282.5606563048.

The spelling of 22559791 in words is "twenty-two million, five hundred fifty-nine thousand, seven hundred ninety-one".