The number 25 is a natural number that follows 24 and precedes 26. It is a square number, as it can be expressed as 5 multiplied by itself. This property makes it significant in various mathematical contexts, including geometry and algebra. In addition to its mathematical importance, 25 is often associated with milestones, such as a person's 25th birthday, which is commonly celebrated as a significant event. It also appears in various cultural references, such as the 25th anniversary, often referred to as the silver anniversary, symbolizing a long-lasting commitment.