22566241 has 2 divisors, whose sum is σ = 22566242. Its totient is φ = 22566240.

The previous prime is 22566227. The next prime is 22566301. The reversal of 22566241 is 14266522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12453841 + 10112400 = 3529^2 + 3180^2 .

It is a cyclic number.

It is not a de Polignac number, because 22566241 - 2¹⁵ = 22533473 is a prime.

It is not a weakly prime, because it can be changed into another prime (22566221) 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, 11283120 + 11283121.

It is an arithmetic number, because the mean of its divisors is an integer number (11283121).

Almost surely, 2^22566241 is an apocalyptic number.

It is an amenable number.

22566241 is a deficient number, since it is larger than the sum of its proper divisors (1).

22566241 is an equidigital number, since it uses as much as digits as its factorization.

22566241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 22566241 is about 4750.3937731519. The cubic root of 22566241 is about 282.5875824196.

Adding to 22566241 its product of digits (5760), we get a square (22572001 = 4751²).

It can be divided in two parts, 225 and 66241, that added together give a palindrome (66466).

The spelling of 22566241 in words is "twenty-two million, five hundred sixty-six thousand, two hundred forty-one".