In this task, you are given an input list. A list contains several comma-separated items written within brackets. You need to return the count of all the numerical elements in the given list. Return 0 if no numerical element in the list.
['9521', 'z', 'T', 'O', '6793', 'E', '9497', 'l', 'e', 'M', 'B', 'n', 'F', 'L', 'N', 'F', '2629', '3729', 'X', 'v', '3393', 'O', '4739']