How to pass text that has special characters like "$" on ssh command line?

Issue

• Need to run SSH command remotely:

[root@myserver ~]# echo $root_line
root:$6$2AAAWg0U/5sR$iDEJqNhi0ar23hRMogGrlTNlWdYnSQRVbTKwj2ovTQFLRNB376Dt/jTiiXOSg/RzLxhIeLR9lZMpfKOBwUsJS6GJR/:19187:7:99999:7:::

[root@myserver ~]# ssh -t my-user@remote_server  "sudo  sed  s#^root:.*#$root_line# /root/shadow2"
Enter login password:
root:AAAWg0U/5sR/jTiiXOSg/RzLxhIeLR9lZMpfKOBwUsJS6GJR/:19187:7:99999:7:::

$2 $6 $iDEJqNhi0hRMogGrlTNlWdYnSQRVbTKwj2ovTQFLRNB376Dt are missing. they are being interpreted as variables
[root@myserver ~]#