2591

2591 is a natural number that follows 2590 and precedes 2592. In decimal notation it is written as 2591. It is an odd integer. Its representations in other bases include binary: 101000011111, hexadecimal: A1F, and Roman numerals: MMDXCI.

In mathematics, 2591 is a prime number, meaning its only positive divisors are 1 and itself. It is not divisible by 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, or 47. The digit sum is 17, which confirms it is not divisible by 3 or 9. The square root of 2591 is about 50.9, so a divisibility check against primes up to 47 suffices to establish primality.

As a numeric label, 2591 may appear in various contexts such as cataloging, sequencing, or designations in databases and inventories. In calendar terms, 2591 CE would be a far-future year, with no widely cited historical events associated with it. Like many integers, 2591 can serve as a convenient placeholder or identifier in mathematical examples, algorithm demonstrations, and educational problems.