Burma, officially the Republic of the Union of Myanmar, is a country in Southeast Asia. The country is bordered by the People's Republic of China on the northeast, Laos on the east, Thailand on the southeast, Bangladesh on the west, India on the northwest, and the Bay of Bengal to the southwest, with the Andaman Sea defining its southern periphery. One-third of Burma's total perimeter of 1,930 kilometres (1,200 mi) forms an uninterrupted coastline. At 676,578 km2 (261,227 sq mi), Burma is the 40th largest country in the World and the second largest country in Southeast Asia. Burma is also the 24th most populous country in the world with over 58.8 million people.