22563907 has 2 divisors, whose sum is σ = 22563908. Its totient is φ = 22563906.

The previous prime is 22563859. The next prime is 22563911. The reversal of 22563907 is 70936522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22563907 - 2¹¹ = 22561859 is a prime.

It is not a weakly prime, because it can be changed into another prime (22563967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11281953 + 11281954.

It is an arithmetic number, because the mean of its divisors is an integer number (11281954).

Almost surely, 2^22563907 is an apocalyptic number.

22563907 is a deficient number, since it is larger than the sum of its proper divisors (1).

22563907 is an equidigital number, since it uses as much as digits as its factorization.

22563907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 22563907 is about 4750.1481029543. The cubic root of 22563907 is about 282.5778395156.

The spelling of 22563907 in words is "twenty-two million, five hundred sixty-three thousand, nine hundred seven".