As long as you aren't showing any signs and symptoms of problems then there is nothing to be concerned about.
If you experience, faints, near faints, dizziness, shortness of breath or symptoms of feeling overly tired out for no reason then maybe time to get it checked, but otherwise it is your normal physiological baseline.
Everyone is different and just putting an arbitrary figure 'below 60 bpm' as bradycardic is really not helpful. I once took the resting pulse of an ultra runner at 35! He certainly wasn't unhealthy!