NO Ryanair flights are EVER scheduled to be on the ground for longer than 25 minutes.
Actually, a few Ryanair flights have turnarounds scheduled for longer than 25 minutes. For example, DUB-MAD-DUB has 40 minutes in MAD. And another example: FR9336/9335, BRS-GRO-BRS, had 30 minutes in GRO. But of course virtually every Ryanair flight has a scheduled 25-minute turnaround.