45569 has 2 divisors, whose sum is σ = 45570. Its totient is φ = 45568.

The previous prime is 45557. The next prime is 45587. The reversal of 45569 is 96554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44944 + 625 = 212^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 45569 - 2⁴ = 45553 is a prime.

It is a super-2 number, since 2×45569² = 4153067522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 10 and base 12.

It is not a weakly prime, because it can be changed into another prime (45589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22784 + 22785.

It is an arithmetic number, because the mean of its divisors is an integer number (22785).

It is a Proth number, since it is equal to 89 ⋅ 2⁹ + 1 and 89 < 2⁹.

2⁴⁵⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

45569 is a deficient number, since it is larger than the sum of its proper divisors (1).

45569 is an equidigital number, since it uses as much as digits as its factorization.

45569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 45569 is about 213.4689672997. The cubic root of 45569 is about 35.7182220423.

The spelling of 45569 in words is "forty-five thousand, five hundred sixty-nine".