Cinquenta

Cinquenta is the cardinal number that represents the value 50 in the Portuguese language. It is used in counting, measurement, and numbering, and appears in dates, ages, prices, and scores. In Roman numerals, cinquenta is written as L.

Etymology: the word derives from Latin quinquāgintā (“fifty”), transmitted through early Romance forms that evolved into the modern Portuguese spelling cinquenta.

Properties: fifty is an even, composite number. Its prime factorization is 2 × 5^2, and its divisors are 1, 2, 5, 10, 25, and 50. It lies between forty-nine and fifty-one and is the sum of the first five even numbers (2+4+6+8+10).

Usage: cinquenta is used as a numeral and adjective. The ordinal form is quinquagésimo (feminine quinquagésima). In everyday Portuguese, phrases include cinquenta por cento (fifty percent) and cinquenta anos (fifty years). The Roman numeral representation is L. In cultural contexts, the number commonly marks milestones such as a fifty-year anniversary or a half-century.