22559869 has 2 divisors, whose sum is σ = 22559870. Its totient is φ = 22559868.

The previous prime is 22559851. The next prime is 22559879. The reversal of 22559869 is 96895522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22184100 + 375769 = 4710^2 + 613^2 .

It is a cyclic number.

It is not a de Polignac number, because 22559869 - 2⁷ = 22559741 is a prime.

It is a super-2 number, since 2×22559869² = 1017895378594322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22559819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11279934 + 11279935.

It is an arithmetic number, because the mean of its divisors is an integer number (11279935).

Almost surely, 2^22559869 is an apocalyptic number.

It is an amenable number.

22559869 is a deficient number, since it is larger than the sum of its proper divisors (1).

22559869 is an equidigital number, since it uses as much as digits as its factorization.

22559869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 46.

The square root of 22559869 is about 4749.7230445574. The cubic root of 22559869 is about 282.5609819535.

The spelling of 22559869 in words is "twenty-two million, five hundred fifty-nine thousand, eight hundred sixty-nine".