Way too much. The bike sold for $600 or so new. Does it really have just 25 Miles on it? How would you know. It is a 5 year old bike. You can get a brand new bike for $450 with warranty and free service for a year or 2. Even a lightly used bike might need a tuneup after 5 years.

Every market is different, but I would offer maybe $200 if it fit and rode perfectly. Hybrids depreciate quickly.