Even numbers are the numbers that are divisible by 2. These numbers have a special property where they can be divided evenly into two equal groups without leaving any remainder. The number 2 itself is the smallest even number.

Properties of Even Numbers:
- Every even number can be expressed in the form of 2n, where n is an integer.
- Even numbers are always greater than zero.
- The difference between any two consecutive even numbers is 2.

Examples of Even Numbers:
- 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, etc.

Divisibility Rule:
- If a number is divisible by 2, it is an even number. In other words, if the last digit of a number is 0, 2, 4, 6, or 8, then the number is even.
- For example, the number 36 is divisible by 2 because its last digit is 6, which is even. On the other hand, the number 37 is not divisible by 2 because its last digit is 7, which is odd.

Applications of Even Numbers:
Even numbers have various applications in real-life situations, including:
- Timekeeping: Even numbers are used for representing hours on a clock. For example, 6 o'clock, 8 o'clock, 10 o'clock, etc.
- Pairing: Even numbers are used to form pairs, such as in shoes, gloves, or socks.
- Symmetry: Even numbers are often associated with symmetry due to their ability to be divided into two equal parts.

In conclusion, even numbers are the numbers that are divisible by 2 and have various applications in everyday life. They can be expressed as 2n, where n is an integer, and they have the property of being divisible into two equal groups without leaving a remainder.

All multiples of 2 number are called Even numbers.