5761 has 4 divisors (see below), whose sum is σ = 6592. Its totient is φ = 4932.

The previous prime is 5749. The next prime is 5779. The reversal of 5761 is 1675.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5701) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 405 + ... + 418.

It is an arithmetic number, because the mean of its divisors is an integer number (1648).

It is a Proth number, since it is equal to 45 ⋅ 2⁷ + 1 and 45 < 2⁷.

2⁵⁷⁶¹ is an apocalyptic number.

It is an amenable number.

5761 is a deficient number, since it is larger than the sum of its proper divisors (831).

5761 is an equidigital number, since it uses as much as digits as its factorization.

5761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830.

The product of its digits is 210, while the sum is 19.

The square root of 5761 is about 75.9012516366. The cubic root of 5761 is about 17.9266562884.

The spelling of 5761 in words is "five thousand, seven hundred sixty-one".