/usr/lib/x86_64-linux-gnu/libaspell.so.15 is in libaspell15 0.60.7~20110707-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libaspell.so.15.2.0
/usr/lib/x86_64-linux-gnu/libaspell.so.15.2.0