$ sudo apt-get remove libicu52 

Uninstall libicu52 including dependent package

If you would like to remove libicu52 and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove libicu52 

Use Purging libicu52

If you use with purge options to libicu52 package all the configuration and dependent packages will be removed.

$ sudo apt-get purge libicu52 

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove libicu52 

See Also,