22559443 has 4 divisors (see below), whose sum is σ = 22576680. Its totient is φ = 22542208.

The previous prime is 22559437. The next prime is 22559473. The reversal of 22559443 is 34495522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34495522 = 2 ⋅17247761.

It is a cyclic number.

It is not a de Polignac number, because 22559443 - 2⁹ = 22558931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22559399 and 22559408.

It is not an unprimeable number, because it can be changed into a prime (22559423) 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, 6478 + ... + 9331.

It is an arithmetic number, because the mean of its divisors is an integer number (5644170).

Almost surely, 2^22559443 is an apocalyptic number.

22559443 is a deficient number, since it is larger than the sum of its proper divisors (17237).

22559443 is a wasteful number, since it uses less digits than its factorization.

22559443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17236.

The product of its digits is 43200, while the sum is 34.

The square root of 22559443 is about 4749.6781996257. The cubic root of 22559443 is about 282.5592034010.

The spelling of 22559443 in words is "twenty-two million, five hundred fifty-nine thousand, four hundred forty-three".