22572631 has 2 divisors, whose sum is σ = 22572632. Its totient is φ = 22572630.

The previous prime is 22572587. The next prime is 22572659. The reversal of 22572631 is 13627522.

It is an a-pointer prime, because the next prime (22572659) can be obtained adding 22572631 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22572631 is a prime.

It is a super-2 number, since 2×22572631² = 1019047340524322, 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 22572631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22572031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11286315 + 11286316.

It is an arithmetic number, because the mean of its divisors is an integer number (11286316).

Almost surely, 2^22572631 is an apocalyptic number.

22572631 is a deficient number, since it is larger than the sum of its proper divisors (1).

22572631 is an equidigital number, since it uses as much as digits as its factorization.

22572631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 28.

The square root of 22572631 is about 4751.0663013686. The cubic root of 22572631 is about 282.6142530001.

The spelling of 22572631 in words is "twenty-two million, five hundred seventy-two thousand, six hundred thirty-one".