text: This C Program reverses a given number by using modulo operation.
  Here is source code of the C program to reverse a given number. The C program is successfully compiled and run on a Linux system. The program output is also shown below.
  /*
  * C program to accept an integer and reverse it
  */
  #include <stdio.h>
  void main()
  {
  long num, reverse = 0, temp, remainder;
  printf("Enter the number\n");
  scanf("%ld", &num);
  temp = num;
  while (num > 0)
  {
  remainder = num % 10;
  reverse = reverse * 10 + remainder;
  num /= 10;
  }
  printf("Given number = %ld\n", temp);
  printf("Its reverse is = %ld\n", reverse);
  }
  $ cc pgm42.c $ a.out Enter the number 567865 Given number = 567865 Its reverse is = 568765.