You can changing owners if you wish. Directories like 1 2 and 500 are probally owned by your username cause you uploaded them to the server. Ones owned by apache maybe are created by the application. It all depends on your server. On my server all files uploaded to my site or created by any application on my server are automatically owned by my master account so that is of course the correct way to setup the server. Less permissions issues that way. You host should be able to correct the server this way to ensure you dont have permissions issues.