22532431 has 2 divisors, whose sum is σ = 22532432. Its totient is φ = 22532430.

The previous prime is 22532417. The next prime is 22532441. The reversal of 22532431 is 13423522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22532431 - 2¹³ = 22524239 is a prime.

It is a super-2 number, since 2×22532431² = 1015420893539522, which contains 22 as substring.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22532401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11266215 + 11266216.

It is an arithmetic number, because the mean of its divisors is an integer number (11266216).

Almost surely, 2^22532431 is an apocalyptic number.

22532431 is a deficient number, since it is larger than the sum of its proper divisors (1).

22532431 is an equidigital number, since it uses as much as digits as its factorization.

22532431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 22.

The square root of 22532431 is about 4746.8337868520. The cubic root of 22532431 is about 282.4463823895.

Adding to 22532431 its reverse (13423522), we get a palindrome (35955953).

The spelling of 22532431 in words is "twenty-two million, five hundred thirty-two thousand, four hundred thirty-one".