22570637 has 2 divisors, whose sum is σ = 22570638. Its totient is φ = 22570636.

The previous prime is 22570631. The next prime is 22570649. The reversal of 22570637 is 73607522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17422276 + 5148361 = 4174^2 + 2269^2 .

It is a cyclic number.

It is not a de Polignac number, because 22570637 - 2⁴ = 22570621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22570631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11285318 + 11285319.

It is an arithmetic number, because the mean of its divisors is an integer number (11285319).

Almost surely, 2^22570637 is an apocalyptic number.

It is an amenable number.

22570637 is a deficient number, since it is larger than the sum of its proper divisors (1).

22570637 is an equidigital number, since it uses as much as digits as its factorization.

22570637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 22570637 is about 4750.8564491047. The cubic root of 22570637 is about 282.6059309837.

The spelling of 22570637 in words is "twenty-two million, five hundred seventy thousand, six hundred thirty-seven".