# Python Program to Add all the digits of given number

In this tutorial, we are going to learn **how to add all digits of given number in Python**. So let’s get started.

## Adding all digits of a number in Python

To add all digits of given number a given number we need to follow some steps.

**Steps to follow:**

- User has to enter a value.
- Using a loop, we will get each digit of the number by taking modulus to the number.
- Add the digits to some variable.
- Divide the number with 10 to remove the last digit.
- Print the sum.

In this program, we create a function named **reverse**. The reverse function takes a number as an argument and returns the reversed number.

def reverse(number): y=0 while(number>=1): z = number % 10 y = y + z number = number / 10 number = int(number) return y

**Explanation :**

The last digit of the number can be obtained by using a modulus operator. In the above program, we used while loop to get each digit. The last digit is added to variable y in the above program.

Divide the number with 10 to remove the last digit in the given number. This loop terminates when the value of the number is 0 and returns variable y to main program.

### Final code:

def reverse(number): y=0 while(number>=1): z = number % 10 y = y + z number = number / 10 number = int(number) return y Number=int(input("Enter a number: ")) reverse_number=reverse(Number) print("sum of the digits of the number ",Number," is ",reverse_number)

**output:**

Enter a number: 56 sum of the digits of the number 56 is 11

So Guy’s, I hope you really enjoy this tutorial and feel free to leave a comment if you have any doubt.

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