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_name_19 (number_in_series INTEGER, production_code VARCHAR)
### Question:
What is the series number that has a production code of 50021–50025?
### Answer:
SELECT MAX(number_in_series) FROM table_name_19 WHERE production_code = "50021–50025"