Found with PFGW Version 3.7.5

54^48897-53 is 2-PRP! (82.6415s+0.0067s)
54^48897-53 is 3-PRP! (86.7097s+0.0071s)
54^48897-53 is 5-PRP! (81.4591s+0.0063s)
54^48897-53 is 7-PRP! (86.0411s+0.0069s)
54^48897-53 is 11-PRP! (77.8180s+0.0056s)

Primality testing 54^48897-53 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 2
Running N+1 test using discriminant 7, base 1+sqrt(7)
Calling N-1 BLS with factored part 0.10% and helper 0.02% (0.33% proof)
54^48897-53 is Fermat and Lucas PRP! (716.2438s+0.0072s)

To be completed...