22055617 has 2 divisors, whose sum is σ = 22055618. Its totient is φ = 22055616.

The previous prime is 22055611. The next prime is 22055629. The reversal of 22055617 is 71655022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19793601 + 2262016 = 4449^2 + 1504^2 .

It is a cyclic number.

It is not a de Polignac number, because 22055617 - 2³ = 22055609 is a prime.

It is not a weakly prime, because it can be changed into another prime (22055611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11027808 + 11027809.

It is an arithmetic number, because the mean of its divisors is an integer number (11027809).

Almost surely, 2^22055617 is an apocalyptic number.

It is an amenable number.

22055617 is a deficient number, since it is larger than the sum of its proper divisors (1).

22055617 is an equidigital number, since it uses as much as digits as its factorization.

22055617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 22055617 is about 4696.3408096091. The cubic root of 22055617 is about 280.4398571279.

The spelling of 22055617 in words is "twenty-two million, fifty-five thousand, six hundred seventeen".