22492531 has 2 divisors, whose sum is σ = 22492532. Its totient is φ = 22492530.

The previous prime is 22492517. The next prime is 22492543. The reversal of 22492531 is 13529422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22492531 - 2⁵ = 22492499 is a prime.

It is a super-2 number, since 2×22492531² = 1011827901571922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22492531.

It is not a weakly prime, because it can be changed into another prime (22492501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11246265 + 11246266.

It is an arithmetic number, because the mean of its divisors is an integer number (11246266).

Almost surely, 2^22492531 is an apocalyptic number.

22492531 is a deficient number, since it is larger than the sum of its proper divisors (1).

22492531 is an equidigital number, since it uses as much as digits as its factorization.

22492531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 22492531 is about 4742.6291231763. The cubic root of 22492531 is about 282.2795669933.

The spelling of 22492531 in words is "twenty-two million, four hundred ninety-two thousand, five hundred thirty-one".