text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_25548213_1 (series__number INTEGER, us_viewers__million_ VARCHAR)
  ### Question:
  What is the series number that had 5.31 million viewers?
  ### Answer:
  SELECT MAX(series__number) FROM table_25548213_1 WHERE us_viewers__million_ = "5.31"