5666613 has 16 divisors (see below), whose sum is σ = 7741440. Its totient is φ = 3686256.

The previous prime is 5666599. The next prime is 5666621. The reversal of 5666613 is 3166665.

5666613 is nontrivially palindromic in base 2.

5666613 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-5666613 is a prime.

It is a super-2 number, since 2×5666613² = 64221005783538, which contains 22 as substring.

5666613 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5666623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40698 + ... + 40836.

It is an arithmetic number, because the mean of its divisors is an integer number (483840).

Almost surely, 2^5666613 is an apocalyptic number.

It is an amenable number.

5666613 is a deficient number, since it is larger than the sum of its proper divisors (2074827).

5666613 is a wasteful number, since it uses less digits than its factorization.

5666613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376.

The product of its digits is 19440, while the sum is 33.

The square root of 5666613 is about 2380.4648705663. The cubic root of 5666613 is about 178.2821452255.

The spelling of 5666613 in words is "five million, six hundred sixty-six thousand, six hundred thirteen".