2615

2615 is a natural number that lies between 2614 and 2616. In mathematics it is studied as an ordinary positive integer with several straightforward properties and representations in different numeral systems.

Its prime factorization is 2615 = 5 × 523, with 523 being a prime number. Consequently, 2615 is a semiprime. The positive divisors of 2615 are 1, 5, 523, and 2615. It is therefore not a prime, nor a perfect power.

In various bases and notations, 2615 can be expressed as 101000110111 in binary, A37 in hexadecimal, and 5067 in octal. In Roman numerals, it is MMDCXV. The number is odd, its digit sum is 14 (digital root 5), and it is congruent to 5 modulo 9.

As a representative of semiprimes, 2615 is often cited in elementary number theory examples to illustrate the factorization into two primes and the resulting divisor structure. It is not a square or cube and has no special designation beyond its role as a product of two distinct primes.