5513

5513 is a natural number that follows 5512 and precedes 5514. In mathematics, it has the prime factorization 37 × 149, making it a composite number. It has four positive divisors: 1, 37, 149, and 5513. Its square root is approximately 74.3, which is why trial division by primes up to 74 rules out many potential factors.

In popular culture and collectibles, 5513 is widely recognized as the reference number for a Rolex Submariner watch. The Submariner reference 5513 is a stainless steel, no-date version of the iconic dive watch, produced by Rolex from the 1960s through the late 1980s. It is noted for its long production run and its status among vintage collectors as one of the classic no-date Submariner models.

Typical features of the 5513 include a 40mm Oyster case, a black dial, and a unidirectional rotating bezel with an aluminum insert. The watch is powered by an automatic movement and uses a screw-down crown to enhance water resistance, commonly rated around 200 meters (660 feet). Availability and appearance vary by year and production batch, leading to a range of dial configurations and hand styles that are used to identify different eras of the model.

Other uses: Besides mathematics, 5513 may appear as a numeric designation in various catalogs, part numbers, or identifiers in different fields. As a number, it is simply a composite integer with factors 37 and 149.