Yes, all those pins with analog can also be used as digital I/O.
The same is mostly true on newer Teensy 3.2, 3.5 and 3.6, except just a few very special analog-only pins.
On Teensy 2.0 and Teensy++ 2.0 all the pins with analog also have digital capability. There aren't any special analog-only pins, except AREF.