5666005 has 8 divisors (see below), whose sum is σ = 6811992. Its totient is φ = 4524288.

The previous prime is 5665997. The next prime is 5666021. The reversal of 5666005 is 5006665.

It can be written as a sum of positive squares in 4 ways, for example, as 1347921 + 4318084 = 1161^2 + 2078^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5666005 - 2³ = 5665997 is a prime.

It is a super-2 number, since 2×5666005² = 64207225320050, which contains 22 as substring.

It is a Duffinian 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, 4617 + ... + 5713.

It is an arithmetic number, because the mean of its divisors is an integer number (851499).

Almost surely, 2^5666005 is an apocalyptic number.

It is an amenable number.

5666005 is a deficient number, since it is larger than the sum of its proper divisors (1145987).

5666005 is a wasteful number, since it uses less digits than its factorization.

5666005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 5666005 is about 2380.3371609921. The cubic root of 5666005 is about 178.2757687286.

The spelling of 5666005 in words is "five million, six hundred sixty-six thousand, five".