/usr/lib/x86_64-linux-gnu/libXp.so.6 is in libxp6 1:1.0.2-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libXp.so.6.2.0
/usr/lib/x86_64-linux-gnu/libXp.so.6.2.0