22320559 has 2 divisors, whose sum is σ = 22320560. Its totient is φ = 22320558.

The previous prime is 22320503. The next prime is 22320563. The reversal of 22320559 is 95502322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22320559 is a prime.

It is a super-3 number, since 3×22320559³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22320059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11160279 + 11160280.

It is an arithmetic number, because the mean of its divisors is an integer number (11160280).

Almost surely, 2^22320559 is an apocalyptic number.

22320559 is a deficient number, since it is larger than the sum of its proper divisors (1).

22320559 is an equidigital number, since it uses as much as digits as its factorization.

22320559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 22320559 is about 4724.4638849292. The cubic root of 22320559 is about 281.5583138123.

The spelling of 22320559 in words is "twenty-two million, three hundred twenty thousand, five hundred fifty-nine".