22006559 has 8 divisors (see below), whose sum is σ = 22894080. Its totient is φ = 21130200.

The previous prime is 22006531. The next prime is 22006571. The reversal of 22006559 is 95560022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22006559 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 (22006529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1352 + ... + 6770.

It is an arithmetic number, because the mean of its divisors is an integer number (2861760).

Almost surely, 2^22006559 is an apocalyptic number.

22006559 is a deficient number, since it is larger than the sum of its proper divisors (887521).

22006559 is a wasteful number, since it uses less digits than its factorization.

22006559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5581.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 22006559 is about 4691.1148994669. The cubic root of 22006559 is about 280.2317766259.

The spelling of 22006559 in words is "twenty-two million, six thousand, five hundred fifty-nine".