CREATE TABLE table_name_53 (week INT, opponent VARCHAR, attendance VARCHAR)

What is the highest week for the San Diego Chargers with an attendance that is less than 53,455?
SELECT MAX(week) FROM table_name_53 WHERE opponent = "san diego chargers" AND attendance < 53 OFFSET 455
SELECT MAX("week") FROM "table_name_53" WHERE "attendance" < 53 AND "opponent" = "san diego chargers" OFFSET 455