5666257 has 8 divisors (see below), whose sum is σ = 6002496. Its totient is φ = 5337552.

The previous prime is 5666251. The next prime is 5666261. The reversal of 5666257 is 7526665.

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 5666257 - 2³ = 5666249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5666251) 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 7 ways as a sum of consecutive naturals, for example, 298 + ... + 3379.

It is an arithmetic number, because the mean of its divisors is an integer number (750312).

Almost surely, 2^5666257 is an apocalyptic number.

It is an amenable number.

5666257 is a deficient number, since it is larger than the sum of its proper divisors (336239).

5666257 is a wasteful number, since it uses less digits than its factorization.

5666257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767.

The product of its digits is 75600, while the sum is 37.

The square root of 5666257 is about 2380.3900940812. The cubic root of 5666257 is about 178.2784116741.

The spelling of 5666257 in words is "five million, six hundred sixty-six thousand, two hundred fifty-seven".