0 is a even or odd why
Zero is an even number.
Its parity—the quality of an integer being even or odd—is even. Zero fits the definition of “even number”: it is an integer multiple of 2, namely 0 × 2. As a result, zero shares all the properties that characterize even numbers: 0 is evenly divisible by 2, 0 is surrounded on both sides by odd numbers, 0 is the sum of an integer (0) with itself, and a set of 0 objects can be split into two equal sets.