5564666 has 16 divisors (see below), whose sum is σ = 8783424. Its totient is φ = 2638944.

The previous prime is 5564651. The next prime is 5564687. The reversal of 5564666 is 6664655.

5564666 = 199² + 200² + ... + 290².

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 5861 + ... + 6743.

It is an arithmetic number, because the mean of its divisors is an integer number (548964).

Almost surely, 2^5564666 is an apocalyptic number.

5564666 is a deficient number, since it is larger than the sum of its proper divisors (3218758).

5564666 is a wasteful number, since it uses less digits than its factorization.

5564666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045.

The product of its digits is 129600, while the sum is 38.

The square root of 5564666 is about 2358.9544294030. The cubic root of 5564666 is about 177.2065215767.

The spelling of 5564666 in words is "five million, five hundred sixty-four thousand, six hundred sixty-six".