5666001 has 8 divisors (see below), whose sum is σ = 8241504. Its totient is φ = 3433920.

The previous prime is 5665997. The next prime is 5666021. The reversal of 5666001 is 1006665.

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

It is not a de Polignac number, because 5666001 - 2² = 5665997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5666021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85816 + ... + 85881.

It is an arithmetic number, because the mean of its divisors is an integer number (1030188).

Almost surely, 2^5666001 is an apocalyptic number.

It is an amenable number.

5666001 is a deficient number, since it is larger than the sum of its proper divisors (2575503).

5666001 is a wasteful number, since it uses less digits than its factorization.

5666001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171711.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 5666001 is about 2380.3363207749. The cubic root of 5666001 is about 178.2757267764.

The spelling of 5666001 in words is "five million, six hundred sixty-six thousand, one".