XXXiii

XXXIII is the Roman numeral for the number 33. It is formed from XXX (thirty) and III (three), combining to represent thirty-three in additive Roman numeral notation. As a numeral, XXXIII is used to denote the 33rd item in a sequence, such as the 33rd edition of a publication or the 33rd ruler or pope in a numbering scheme, where applicable.

In calendar and historical contexts, XXXIII would designate the year 33 in the Julian calendar when spoken of as 33 CE or 33 BCE, depending on the era. In practice, roman numerals on clocks, monuments, or documents often appear without explicit era markers, relying on surrounding text to clarify the time frame.

Mathematically, 33 is a composite number, equal to 3 × 11. Its divisors are 1, 3, 11, and 33. It is odd, and its digit sum is 6. In other contexts, XXXIII is used as a stylistic designation in titles, catalogs, or product codes.

Beyond the numeral itself, XXXIII can appear in various cultural or institutional contexts as a stylized label. The meaning is primarily numerical, and its interpretation depends on the accompanying information indicating its era or category.