5549666 has 16 divisors (see below), whose sum is σ = 8705664. Its totient is φ = 2650704.

The previous prime is 5549659. The next prime is 5549669. The reversal of 5549666 is 6669455.

It is not an unprimeable number, because it can be changed into a prime (5549669) 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 7 ways as a sum of consecutive naturals, for example, 3356 + ... + 4728.

It is an arithmetic number, because the mean of its divisors is an integer number (544104).

Almost surely, 2^5549666 is an apocalyptic number.

5549666 is a deficient number, since it is larger than the sum of its proper divisors (3155998).

5549666 is a wasteful number, since it uses less digits than its factorization.

5549666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465.

The product of its digits is 194400, while the sum is 41.

The square root of 5549666 is about 2355.7729092593. The cubic root of 5549666 is about 177.0471535344.

The spelling of 5549666 in words is "five million, five hundred forty-nine thousand, six hundred sixty-six".