22649563 has 2 divisors, whose sum is σ = 22649564. Its totient is φ = 22649562.

The previous prime is 22649509. The next prime is 22649567. The reversal of 22649563 is 36594622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22649563 - 2⁹ = 22649051 is a prime.

It is not a weakly prime, because it can be changed into another prime (22649567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11324781 + 11324782.

It is an arithmetic number, because the mean of its divisors is an integer number (11324782).

Almost surely, 2^22649563 is an apocalyptic number.

22649563 is a deficient number, since it is larger than the sum of its proper divisors (1).

22649563 is an equidigital number, since it uses as much as digits as its factorization.

22649563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 37.

The square root of 22649563 is about 4759.1557024329. The cubic root of 22649563 is about 282.9349573955.

The spelling of 22649563 in words is "twenty-two million, six hundred forty-nine thousand, five hundred sixty-three".