Q: What is the longest sum of consecutive positive integers that sum to 2025?

A: The longest is 54 numbers from 11 til 64 (including 11 and 64).
If we add 11 and 64, we get 75.
The adjacent numbers to 11 and 64 that also add up to 75 like 12 and 63.
There are 27 pairs of numbers that add up to 75 — all those numbers sum to 2025.