3925

3925 is a natural number that follows 3924 and precedes 3926. It is odd and composite, and it has several simple arithmetic properties that make it a convenient example in number theory discussions.

The prime factorization of 3925 is 5^2 × 157, with 157 a prime number. This makes 3925 divisible by 5 and by 25, but not by 3 or 9. The sum of its digits is 19, which aligns with its non-divisibility by 3. Because it equals 25 × 157, it is the product of a square and a prime.

In standard representations, 3925 is written as MMMCMXXV in Roman numerals. In hexadecimal notation, it is 0xF55. These representations reflect its decimal value across different numeral systems.

As a number, 3925 is used primarily as an identifier in examples, test data, or catalog numbers. When referred to as a year, 3925 CE would be in the distant future relative to current historical records. There are no widely noted events specifically associated with the number 3925.

See also: Roman numerals MMMCMXXV; hexadecimal 0xF55; 3925 (year).