22488539 has 2 divisors, whose sum is σ = 22488540. Its totient is φ = 22488538.

The previous prime is 22488491. The next prime is 22488593. The reversal of 22488539 is 93588422.

Together with next prime (22488593) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22488539 - 2¹² = 22484443 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22488496 and 22488505.

It is not a weakly prime, because it can be changed into another prime (22488439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11244269 + 11244270.

It is an arithmetic number, because the mean of its divisors is an integer number (11244270).

Almost surely, 2^22488539 is an apocalyptic number.

22488539 is a deficient number, since it is larger than the sum of its proper divisors (1).

22488539 is an equidigital number, since it uses as much as digits as its factorization.

22488539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 41.

The square root of 22488539 is about 4742.2082408937. The cubic root of 22488539 is about 282.2628662390.

The spelling of 22488539 in words is "twenty-two million, four hundred eighty-eight thousand, five hundred thirty-nine".