CREATE TABLE table_name_54 (total_viewers__in_millions_ INT, episode_number_production_number VARCHAR)

What was the fewest number of viewers for the episode production number of 109 5-22?
SELECT MIN(total_viewers__in_millions_) FROM table_name_54 WHERE episode_number_production_number = "109 5-22"
SELECT MIN("total_viewers__in_millions_") FROM "table_name_54" WHERE "109 5-22" = "episode_number_production_number"