22549799 has 2 divisors, whose sum is σ = 22549800. Its totient is φ = 22549798.

The previous prime is 22549777. The next prime is 22549819. The reversal of 22549799 is 99794522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22549799 - 2⁸ = 22549543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22549099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11274899 + 11274900.

It is an arithmetic number, because the mean of its divisors is an integer number (11274900).

Almost surely, 2^22549799 is an apocalyptic number.

22549799 is a deficient number, since it is larger than the sum of its proper divisors (1).

22549799 is an equidigital number, since it uses as much as digits as its factorization.

22549799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 47.

The square root of 22549799 is about 4748.6628644283. The cubic root of 22549799 is about 282.5189336515.

The spelling of 22549799 in words is "twenty-two million, five hundred forty-nine thousand, seven hundred ninety-nine".