Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_27846651_1 (series__number VARCHAR, viewers__millions_ VARCHAR)

### Question ###
What episode in the series had 5.24 million viewers?

### Accurate SQL ###

SELECT series__number FROM table_27846651_1 WHERE viewers__millions_ = "5.24"