strange coordinates using OSM map

Hi I am making an app which uses a map downloaded from OpenStreetMap.

The map is of Edinburgh and I have used osm2pgsql to store the map in a PostGIS database.

Here is an example of the coordinates of points in the database when I execute the following query: select ST_AsGeoJSON(way) from planet_osm_point;

{"type":"Point","coordinates":[-397408.355686851020437,7575590.819041009992361]}
 {"type":"Point","coordinates":[-397373.846644709992688,7527300.011806310154498]}
 {"type":"Point","coordinates":[-397357.148721093020868,7514300.569031129591167]}
 {"type":"Point","coordinates":[-397356.035526185994968,7529052.908609829843044]}

These coordinates are different than coordinates I have taken of map websites such as: http://itouchmap.com/latlong.html where coordinates in Edinburgh are like: 55.951324,-3.188095

Does anyone know why this is and how I convert my coordinates into the normal coordinates that are used on these mapping websites?

Thanks