22498559 has 4 divisors (see below), whose sum is σ = 22547616. Its totient is φ = 22449504.

The previous prime is 22498549. The next prime is 22498573. The reversal of 22498559 is 95589422.

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 22498559 - 2⁴ = 22498543 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 (22498549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23834 + ... + 24759.

It is an arithmetic number, because the mean of its divisors is an integer number (5636904).

Almost surely, 2^22498559 is an apocalyptic number.

22498559 is a deficient number, since it is larger than the sum of its proper divisors (49057).

22498559 is an equidigital number, since it uses as much as digits as its factorization.

22498559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49056.

The product of its digits is 259200, while the sum is 44.

The square root of 22498559 is about 4743.2645930835. The cubic root of 22498559 is about 282.3047817227.

The spelling of 22498559 in words is "twenty-two million, four hundred ninety-eight thousand, five hundred fifty-nine".