5665569 has 16 divisors (see below), whose sum is σ = 9297792. Its totient is φ = 2988288.

The previous prime is 5665559. The next prime is 5665571. The reversal of 5665569 is 9655665.

It is not a de Polignac number, because 5665569 - 2⁵ = 5665537 is a prime.

It is a super-2 number, since 2×5665569² = 64197344187522, which contains 22 as substring.

5665569 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5665569.

It is not an unprimeable number, because it can be changed into a prime (5665519) 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 in 15 ways as a sum of consecutive naturals, for example, 10104 + ... + 10649.

It is an arithmetic number, because the mean of its divisors is an integer number (581112).

Almost surely, 2^5665569 is an apocalyptic number.

It is an amenable number.

5665569 is a deficient number, since it is larger than the sum of its proper divisors (3632223).

5665569 is a wasteful number, since it uses less digits than its factorization.

5665569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20776.

The product of its digits is 243000, while the sum is 42.

The square root of 5665569 is about 2380.2455755657. The cubic root of 5665569 is about 178.2711958282.

The spelling of 5665569 in words is "five million, six hundred sixty-five thousand, five hundred sixty-nine".