Possible by using stat command. Its called statistics command which helps to show you the details of files or directories. And also it will show you the values of permission as 755 as required.

Assume if you have test.txt file and test1 directory with 755 permission,

#  stat test.txt
File: `test.txt'
  Size: 14            Blocks: 8          IO Block: 4096   regular file
Device: 802h/2050d    Inode: 422047      Links: 1
Access: (0755/-rwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2017-05-12 15:19:16.783003936 +0530
Modify: 2017-05-12 15:19:14.298004007 +0530
Change: 2017-05-12 15:19:14.298004007 +0530

For directory,

# stat test1
File: `test1'
  Size: 4096          Blocks: 8          IO Block: 4096   directory
Device: 802h/2050d    Inode: 435519      Links: 3
Access: (0755/drwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2017-05-15 16:57:20.651996368 +0530
Modify: 2016-06-27 20:29:55.469998032 +0530
Change: 2016-06-27 20:29:55.469998032 +0530