22957531 has 8 divisors (see below), whose sum is σ = 25146720. Its totient is φ = 20861568.

The previous prime is 22957513. The next prime is 22957541. The reversal of 22957531 is 13575922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22957531 - 2²³ = 14568923 is a prime.

It is a super-2 number, since 2×22957531² = 1054096459231922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22957511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22791 + ... + 23776.

It is an arithmetic number, because the mean of its divisors is an integer number (3143340).

Almost surely, 2^22957531 is an apocalyptic number.

22957531 is a deficient number, since it is larger than the sum of its proper divisors (2189189).

22957531 is a wasteful number, since it uses less digits than its factorization.

22957531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46613.

The product of its digits is 18900, while the sum is 34.

The square root of 22957531 is about 4791.4017781856. The cubic root of 22957531 is about 284.2115521881.

The spelling of 22957531 in words is "twenty-two million, nine hundred fifty-seven thousand, five hundred thirty-one".