A five-digit number is a numerical value that consists of exactly five digits, ranging from 00000 to 99999. Each digit can be any number from 0 to 9, and the position of each digit determines its value. For example, in the number 54321, the digit 5 represents fifty-thousand, while the digit 1 represents one. Five-digit numbers are commonly used in various contexts, such as in ZIP codes for mail delivery, bank account numbers, and product identification codes. Understanding five-digit numbers is essential for tasks like sorting, organizing, and identifying items in everyday life.