automorphic

adjective4

1. •
   Of or pertaining to automorphy or an automorphism.
2. •
   Describing a mineral, in an igneous rock, that is bounded by its own crystal face; euhedral, idiomorphic.
3. •
   Describing a number whose square ends in the number itself; circular.

   • 5 is an automorphic number because 5² = 25, which ends in 5; similarly 625² = 390625, ends in 625.
4. •
   Marked by automorphism, the ascription to others of one's own characteristics.