Don't forget to write 2025 as
1³+2³+3³+4³+5³+6³+7³+8³+9³
(next opportunity is only in 3025)!
(Or, for the #math and #LaTeX lovers:
\begin{equation}
\sum_{n=1}^9 n^3
\end{equation})

@pfsmet

45² also works.

But it's a bit boring 😅

@folfdk

Its the sum of 123456789

@kevinrns @folfdk boring?
45 = 20 + 25

@jdoe

I don't understand. lol