5666000 has 40 divisors (see below), whose sum is σ = 13705224. Its totient is φ = 2265600.

The previous prime is 5665997. The next prime is 5666021. The reversal of 5666000 is 6665.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 394384 + 5271616 = 628^2 + 2296^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584 + ... + 3416.

Almost surely, 2^5666000 is an apocalyptic number.

5666000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5666000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6852612).

5666000 is an abundant number, since it is smaller than the sum of its proper divisors (8039224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5666000 is a wasteful number, since it uses less digits than its factorization.

5666000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856 (or 2840 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 5666000 is about 2380.3361107205. The cubic root of 5666000 is about 178.2757162884.

The spelling of 5666000 in words is "five million, six hundred sixty-six thousand".