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.
['5859', 'b', 'b', 'i', '1643', 'g', '4851', '5445', 'H', 'f', '4705', 'c', '6025', '685', '5711', '2399', 'b', 'U', 'd', 'H', 'k']