5771 has 4 divisors (see below), whose sum is σ = 6000. Its totient is φ = 5544.

The previous prime is 5749. The next prime is 5779. The reversal of 5771 is 1775.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^{k}-5771 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (5779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71 + ... + 128.

It is an arithmetic number, because the mean of its divisors is an integer number (1500).

2^{5771} is an apocalyptic number.

5771 is a deficient number, since it is larger than the sum of its proper divisors (229).

5771 is a wasteful number, since it uses less digits than its factorization.

5771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228.

The product of its digits is 245, while the sum is 20.

The square root of 5771 is about 75.9670981412. The cubic root of 5771 is about 17.9370227143.

It can be divided in two parts, 57 and 71, that added together give a 7-th power (128 = 2^{7}).

The spelling of 5771 in words is "five thousand, seven hundred seventy-one".

• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.059 sec. • engine limits •