What is the sum of the areas for populations of 542?
CREATE TABLE table_name_66 (area_km_2 INTEGER, population VARCHAR)
SELECT SUM(area_km_2) FROM table_name_66 WHERE population = 542
### Context: CREATE TABLE table_name_66 (area_km_2 INTEGER, population VARCHAR) ### Question: What is the sum of the areas for populations of 542? ### Answer: SELECT SUM(area_km_2) FROM table_name_66 WHERE population = 542