5543666 has 16 divisors (see below), whose sum is σ = 8895744. Its totient is φ = 2581824.

The previous prime is 5543623. The next prime is 5543701. The reversal of 5543666 is 6663455.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2711 + ... + 4293.

It is an arithmetic number, because the mean of its divisors is an integer number (555984).

Almost surely, 2^5543666 is an apocalyptic number.

5543666 is a deficient number, since it is larger than the sum of its proper divisors (3352078).

5543666 is a wasteful number, since it uses less digits than its factorization.

5543666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705.

The product of its digits is 64800, while the sum is 35.

The square root of 5543666 is about 2354.4990974728. The cubic root of 5543666 is about 176.9833259107.

The spelling of 5543666 in words is "five million, five hundred forty-three thousand, six hundred sixty-six".