5666445 has 12 divisors (see below), whose sum is σ = 9821916. Its totient is φ = 3022080.

The previous prime is 5666443. The next prime is 5666447. The reversal of 5666445 is 5446665.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5666443) and next prime (5666447).

It can be written as a sum of positive squares in 2 ways, for example, as 777924 + 4888521 = 882^2 + 2211^2 .

It is not a de Polignac number, because 5666445 - 2¹ = 5666443 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666443) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 62916 + ... + 63005.

It is an arithmetic number, because the mean of its divisors is an integer number (818493).

Almost surely, 2^5666445 is an apocalyptic number.

It is an amenable number.

5666445 is a deficient number, since it is larger than the sum of its proper divisors (4155471).

5666445 is a wasteful number, since it uses less digits than its factorization.

5666445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125932 (or 125929 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 5666445 is about 2380.4295830795. The cubic root of 5666445 is about 178.2803833443.

The spelling of 5666445 in words is "five million, six hundred sixty-six thousand, four hundred forty-five".