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5666 = 22833
BaseRepresentation
bin1011000100010
321202212
41120202
5140131
642122
722343
oct13042
97685
105666
114291
123342
13276b
1420ca
151a2b
hex1622

5666 has 4 divisors (see below), whose sum is σ = 8502. Its totient is φ = 2832.

The previous prime is 5659. The next prime is 5669. The reversal of 5666 is 6665.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5041 + 625 = 71^2 + 25^2 .

5666 is a modest number, since divided by 66 gives 56 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5669) by changing a digit.

5666 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1415 + ... + 1418.

5666 is a deficient number, since it is larger than the sum of its proper divisors (2836).

5666 is a wasteful number, since it uses less digits than its factorization.

5666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835.

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

The square root of 5666 is about 75.2728370662. The cubic root of 5666 is about 17.8275716288.

Subtracting 5666 from its reverse (6665), we obtain a palindrome (999).

The spelling of 5666 in words is "five thousand, six hundred sixty-six".

Divisors: 1 2 2833 5666