The Socceroos will hope to make ground on South Korea (57th), Japan (56th) and Egypt (53rd) after their upcoming World Cup qualifiers against Tajikistan and Jordan.
Belgium remain top in the world football rankings issued on Thursday by the ruling body FIFA, with no changes in the top 10 and no major moves elsewhere.
There were no major moves in the top 10, with Belgium in top spot with 1507 points ahead of Argentina (1457) and European champions Spain (1374).
World champions Germany, Chile, Brazil, Portugal, Colombia, England and Austria complete the top 10.
With only 14 national team games played in February, the rankings saw no major moves but this could change in the next list as friendlies and 2018 World Cup qualifiers are scheduled for late March.