22445663 has 2 divisors, whose sum is σ = 22445664. Its totient is φ = 22445662.

The previous prime is 22445653. The next prime is 22445693. The reversal of 22445663 is 36654422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22445663 - 2⁸ = 22445407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22445653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11222831 + 11222832.

It is an arithmetic number, because the mean of its divisors is an integer number (11222832).

Almost surely, 2^22445663 is an apocalyptic number.

22445663 is a deficient number, since it is larger than the sum of its proper divisors (1).

22445663 is an equidigital number, since it uses as much as digits as its factorization.

22445663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 32.

The square root of 22445663 is about 4737.6854053430. The cubic root of 22445663 is about 282.0833673676.

The spelling of 22445663 in words is "twenty-two million, four hundred forty-five thousand, six hundred sixty-three".