22025

22025 is a natural number that lies between 22024 and 22026. In decimal notation, it ends with 25, indicating divisibility by 5 and by 25. As a numerical value, it has significance in arithmetic and number theory as a concrete example of a composite integer.

Its prime factorization is 5^2 × 881, with 881 being a prime number. Therefore 22025 is composite and not square-free. The divisors of 22025 are 1, 5, 25, 881, 4405, and 22025. The sum of its proper divisors is 5317, which makes 22025 a deficient number (the sum of proper divisors is less than the number itself).

22025 can be expressed as a sum of two squares: 22025 = 125^2 + 80^2. This representation aligns with its prime factorization, since all prime factors of the form 4k+1 occur with any exponent, and no prime factor congruent to 3 mod 4 appears with an odd exponent. In particular, 5 and 881 are both congruent to 1 mod 4, which supports the sum-of-squares decomposition.

Beyond its mathematical properties, 22025 is simply a five-digit decimal numeral that may appear in various practical contexts such as identifiers or codes. It does not correspond to a widely cited mathematical constant or named sequence.