CartoDB recognizes and uses degrees in decimal form.
You can try to go to the map view in an empty table an draw a point (right toolbar, bottom button, "add feature") and then go back to your table to see how the coordinates were saved in the the_geom column.
In your CSV, I recommend you to have two columns: one for latitude and other for longitude. If you call them latitude/longitude, or lat/long, or any other similar terms, the system will recognize those columns and will plot them directly in a map.
If you have your coordinates in a "lat, long" format (in a single column), I recommend you to create in your CartoDB table a column for latitude, other for the longitude, and use these queries:
UPDATE _tablename_ SET _latitude_ = split_part(_coordinates_, ', ', 1)
UPDATE _tablename_ SET _longitude_ = split_part(_coordinates_, ', ', 2)
(The words between _ refer to column names (or table name), so you should change them accordingly). This way you can process easily your data from CartoDB without having to manually edit all the values.