Write a Python code segment for a program to:

Populate a list with the numbers between $49$ and $99$ with steps of $2.$ So$,$ the contents of the list would be $49,51,53,$dots,$99.$

Use a predefined function to calculate the total of all the values in the list.

Use a predefined function to find the lowest value in the list.

Display the contents of the list backwards, so the output would be $99,97,$dots,$49.$