22502489 has 2 divisors, whose sum is σ = 22502490. Its totient is φ = 22502488.

The previous prime is 22502477. The next prime is 22502531. The reversal of 22502489 is 98420522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14707225 + 7795264 = 3835^2 + 2792^2 .

It is a cyclic number.

It is not a de Polignac number, because 22502489 - 2²⁴ = 5725273 is a prime.

It is a super-2 number, since 2×22502489² = 1012724022390242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22502429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11251244 + 11251245.

It is an arithmetic number, because the mean of its divisors is an integer number (11251245).

Almost surely, 2^22502489 is an apocalyptic number.

It is an amenable number.

22502489 is a deficient number, since it is larger than the sum of its proper divisors (1).

22502489 is an equidigital number, since it uses as much as digits as its factorization.

22502489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 22502489 is about 4743.6788466337. The cubic root of 22502489 is about 282.3212182301.

The spelling of 22502489 in words is "twenty-two million, five hundred two thousand, four hundred eighty-nine".