CREATE TABLE table_name_56 (area_km_2 INT, census_ranking VARCHAR)

What is the Area km 2 with a Census Ranking of 1,773 of 5,008?
SELECT SUM(area_km_2) FROM table_name_56 WHERE census_ranking = "1,773 of 5,008"
SELECT SUM("area_km_2") FROM "table_name_56" WHERE "1,773 of 5,008" = "census_ranking"