A friend sent me, sharing with y'all

Happy 45²

2025 = 45² is a "perfect-square year."

It is represented by the square of the sum of all digits in the decimal number system.

(0 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9)² = 2025.

It also represents the sum of the cubes of all digits in the decimal number system.

(0³ + 1³ + 2³ + 3³ + 4³ + 5³ + 6³ + 7³ + 8³ + 9³) = 2025.

The last "perfect-square year" occurred in 1936, and after 2025, it will only happen again in 2116.

Happy 45² to all of us!!!

An excellent 2025 to you!!!