22512563 has 2 divisors, whose sum is σ = 22512564. Its totient is φ = 22512562.

The previous prime is 22512557. The next prime is 22512583. The reversal of 22512563 is 36521522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22512563 - 2⁶ = 22512499 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22512583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11256281 + 11256282.

It is an arithmetic number, because the mean of its divisors is an integer number (11256282).

Almost surely, 2^22512563 is an apocalyptic number.

22512563 is a deficient number, since it is larger than the sum of its proper divisors (1).

22512563 is an equidigital number, since it uses as much as digits as its factorization.

22512563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 26.

The square root of 22512563 is about 4744.7405619275. The cubic root of 22512563 is about 282.3633421575.

The spelling of 22512563 in words is "twenty-two million, five hundred twelve thousand, five hundred sixty-three".