2216569 has 2 divisors, whose sum is σ = 2216570. Its totient is φ = 2216568.

The previous prime is 2216563. The next prime is 2216587. The reversal of 2216569 is 9656122.

2216569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1428025 + 788544 = 1195^2 + 888^2 .

It is a cyclic number.

It is not a de Polignac number, because 2216569 - 2⁹ = 2216057 is a prime.

It is a super-2 number, since 2×2216569² = 9826356263522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2216569.

It is not a weakly prime, because it can be changed into another prime (2216563) 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, 1108284 + 1108285.

It is an arithmetic number, because the mean of its divisors is an integer number (1108285).

2^2216569 is an apocalyptic number.

It is an amenable number.

2216569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216569 is an equidigital number, since it uses as much as digits as its factorization.

2216569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 2216569 is about 1488.8146291597. The cubic root of 2216569 is about 130.3848359862.

The spelling of 2216569 in words is "two million, two hundred sixteen thousand, five hundred sixty-nine".