5765

5765 is a natural number that follows 5764 and precedes 5766. In mathematics, 5765 has the prime factorization 5 × 1153; since 1153 is prime, 5765 is a semiprime. It is odd and ends in 5, so it is divisible by 5 but not by 3 or 9. The sum of its digits is 23, which confirms non-divisibility by 3. The number is not a perfect power (not a square, cube, or higher) and is not a triangular number, as the equation n(n+1)/2 = 5765 has no integer solution.

Numeral representations: in binary it is 1011010000101; in hexadecimal it is 0x1685; in octal it is 013205.

In the Hebrew calendar, the year 5765 corresponds roughly to 2004–2005 CE.

There is no widely referenced event or property tied specifically to the number 5765 beyond its basic mathematical and calendrical associations.