The sum of the first \( n \) odd numbers can be calculated using the formula:
\[ \text{Sum} = n^2 \]
For the first 54 odd numbers, we set \( n = 54 \):
\[ \text{Sum} = 54^2 \]
Now, we calculate \( 54^2 \):
\[ 54^2 = 2916 \]
Therefore, the sum of the first 54 odd numbers is
\[ \boxed{2916} \]