Found with PFGW Version 3.4.8

57^11073+56 is 2-PRP! (12.4986s+0.0648s)
57^11073+56 is 3-PRP! (17.3886s+0.0176s)
57^11073+56 is 5-PRP! (12.5965s+0.0052s)
57^11073+56 is 7-PRP! (18.4422s+0.0052s)
57^11073+56 is 11-PRP! (22.0417s+0.0058s)

Primality testing 57^11073+56 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 3
Running N+1 test using discriminant 17, base 6+sqrt(17)
Calling N+1 BLS with factored part 0.09% and helper 0.03% (0.30% proof)
57^11073+56 is Fermat and Lucas PRP! (193.8866s+0.0220s)

To be completed...