Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_13 ( rd__number INTEGER, pl_gp VARCHAR, pick__number VARCHAR )

### Question ###
Name the least RD number that has PI GP more than 0 and pick # more than 51

### Accurate SQL ###

SELECT MIN(rd__number) FROM table_name_13 WHERE pl_gp > 0 AND pick__number > 51