Find the Successor Number: What Comes After 5449?

To solve this problem, we'll follow these steps:

• Step 1: Identify the given information
• Step 2: Apply the formula for finding a successor
• Step 3: Perform the addition calculation

Now, let's work through each step:
Step 1: The problem gives us the number 5449.
Step 2: To find the successor, we use the formula $n + 1$.
Step 3: Add 1 to 5449 to find its successor:
$5449 + 1 = 5450$

Therefore, the solution to the problem is $\textbf{5450}$.