/lib/x86_64-linux-gnu/libnewt.so.0.52 is in libnewt0.52 0.52.18-1ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /lib/x86_64-linux-gnu/libnewt.so.0.52.18
/lib/x86_64-linux-gnu/libnewt.so.0.52.18