-53.042039, 72.594852 where is this what is it

i found it at google maps and dont know what it is

That is the location of McDonald Island, part of the Heard and McDonald Islands territory belonging to Australia. These are an uninhabited island group near Antarctica. McDonald Island is the site of an active volcano.

Usually, the first number is the latitude and the second, the longitude. Here, given as degrees and decimal of degrees. If the first one is the latitude, since it is negative, it means: in the southern hemisphere. It would place you somewhere off the Antarctic continent. If it is the longitude then it would place you somewhere in the ice of Greenland.

just copy and paste into Google Maps.

That location is in the far southern Indian Ocean close to heard is.