"Sixty" is a number that comes after fifty-nine and before sixty-one. It is often associated with milestones, such as turning sixty years old, which many people celebrate as a significant birthday. In Roman numerals, sixty is represented as LX. In mathematics, sixty is an interesting number because it is a composite number, meaning it can be divided by numbers other than one and itself. It has factors like 2, 3, 4, 5, and 6. Additionally, sixty is the basis for measuring time, as there are sixty seconds in a minute and sixty minutes in an hour.