What is 5555 to 2 significant figures?

When rounding 5555 to 2 significant figures, we start counting from the leftmost non-zero digit. In this case, the leftmost non-zero digit is 5. The next digit after 5 is 5, which is greater than or equal to 5, so we round up the leftmost non-zero digit. Therefore, 5555 rounded to 2 significant figures is 5600.