  We extend the standard SSH model to include long range hopping and disorder,
and study how the electronic and topological properties are affected. We show
that long range hopping can change the symmetry class and the topological
invariant, while diagonal and off-diagonal disorder lead to Anderson
localization. Interestingly we find that the Lyapunov exponent $\gamma(E)$ can
be linked in two ways to the topological properties in the presence of
disorder: Either due to the different response of mid-gap states to increasing
disorder, or due to an extra contribution to $\gamma$ due to the presence of
edge modes. Finally we discuss its implications in realistic transport
measurements.
