CREATE TABLE table_57855 ("Country" CLOB, "Population" CLOB, "Area  ( km\\u00b2 ) " CLOB, "GDP  ( nominal ) " CLOB, "GDP per capita  ( nominal ) " CLOB)

Which GDP (nominal) has a Population of 5,550,239?
SELECT "GDP (nominal)" FROM table_57855 WHERE "Population" = '5,550,239'
SELECT "GDP (nominal)" FROM "table_57855" WHERE "Population" = '5,550,239'