Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How many millions of total viewers watched series #57?

### Inputs:
table_name: table, columns: ['Series #', 'Season #', 'Title', 'Directed by', 'Written by', 'Original air date', 'Total viewers (in millions)']

### Response:
SELECT COUNT Total viewers (in millions) FROM table WHERE Series # = 57