22252717 has 2 divisors, whose sum is σ = 22252718. Its totient is φ = 22252716.

The previous prime is 22252691. The next prime is 22252721. The reversal of 22252717 is 71725222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19105641 + 3147076 = 4371^2 + 1774^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22252717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22252757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11126358 + 11126359.

It is an arithmetic number, because the mean of its divisors is an integer number (11126359).

Almost surely, 2^22252717 is an apocalyptic number.

It is an amenable number.

22252717 is a deficient number, since it is larger than the sum of its proper divisors (1).

22252717 is an equidigital number, since it uses as much as digits as its factorization.

22252717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3920, while the sum is 28.

The square root of 22252717 is about 4717.2785586607. The cubic root of 22252717 is about 281.2727644455.

Adding to 22252717 its reverse (71725222), we get a palindrome (93977939).

The spelling of 22252717 in words is "twenty-two million, two hundred fifty-two thousand, seven hundred seventeen".