What is the series number that had 5.31 million viewers?
CREATE TABLE table_25548213_1 (series__number INTEGER, us_viewers__million_ VARCHAR)
SELECT MAX(series__number) FROM table_25548213_1 WHERE us_viewers__million_ = "5.31"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_25548213_1 (series__number INTEGER, us_viewers__million_ VARCHAR) Question: What is the series number that had 5.31 million viewers? [/INST] SELECT MAX(series__number) FROM table_25548213_1 WHERE us_viewers__million_ = "5.31" </s>