4503

4503 is a natural number that follows 4502 and precedes 4504. In mathematics, it is an odd composite number with prime factorization 3 × 19 × 79 and is squarefree. It has eight positive divisors: 1, 3, 19, 57, 79, 237, 1501, and 4503. The digit sum is 4 + 5 + 0 + 3 = 12, so the number is divisible by 3 but not by 9. It can be expressed as the sum of three consecutive integers: 1500 + 1501 + 1502 = 4503. As an odd number, it is also the difference of two consecutive squares: 2252^2 − 2251^2 = 4503.

Outside pure mathematics, 4503 may appear as an identifier in various systems, such as catalog numbers, product SKUs, or postal and area codes in different countries, although the exact meaning depends on the context. In historical or calendrical discussions, 4503 could denote a year (either 4503 CE or 4503 BCE), but such usage is relatively uncommon. There is no single universally recognized meaning for 4503 beyond its mathematical properties as a number.