It has degree 4, with 20 vertices and 40 edges.
It has girth 4, diameter 5 and radius 5.
Its symmetry group has 80 elements.
It is bipartite.
It is Hamiltonian.
It is symmetric.
It is 1-arc-transitive.
Its distance-list is 1,4,5,4,4,2.
20-circulant(1,9) can be regarded as 5-cycle × 4-cycle