def selective_stringify_nums(nums):
    """Selectively stringify nums:
    Given a list of numbers, write a list comprehension that produces a list of strings of each number that is divisible by 5.
        >>> selective_stringify_nums([25, 91, 22, -7, -20])
        ['25', '-20']
    """
    lst = [str(a) for a in nums if a%5 ==0]
    return lst
    pass