22522439 has 2 divisors, whose sum is σ = 22522440. Its totient is φ = 22522438.

The previous prime is 22522427. The next prime is 22522453. The reversal of 22522439 is 93422522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22522439 - 2¹² = 22518343 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22522639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11261219 + 11261220.

It is an arithmetic number, because the mean of its divisors is an integer number (11261220).

Almost surely, 2^22522439 is an apocalyptic number.

22522439 is a deficient number, since it is larger than the sum of its proper divisors (1).

22522439 is an equidigital number, since it uses as much as digits as its factorization.

22522439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 22522439 is about 4745.7811791106. The cubic root of 22522439 is about 282.4046259611.

The spelling of 22522439 in words is "twenty-two million, five hundred twenty-two thousand, four hundred thirty-nine".