22452539 has 2 divisors, whose sum is σ = 22452540. Its totient is φ = 22452538.

The previous prime is 22452533. The next prime is 22452553. The reversal of 22452539 is 93525422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22452539 - 2¹⁶ = 22387003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22452533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11226269 + 11226270.

It is an arithmetic number, because the mean of its divisors is an integer number (11226270).

Almost surely, 2^22452539 is an apocalyptic number.

22452539 is a deficient number, since it is larger than the sum of its proper divisors (1).

22452539 is an equidigital number, since it uses as much as digits as its factorization.

22452539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 32.

The square root of 22452539 is about 4738.4110205849. The cubic root of 22452539 is about 282.1121688812.

The spelling of 22452539 in words is "twenty-two million, four hundred fifty-two thousand, five hundred thirty-nine".