825

Number
$825$ (eight hundred and twenty-five) is:
 * $3 \times 5^2 \times 11$


 * The $41$st Smith number after $4$, $22$, $27$, $58$, $\ldots$, $648$, $654$, $663$, $666$, $690$, $706$, $728$, $729$, $762$, $778$:
 * $8 + 2 + 5 = 3 + 5 + 5 + 1 + 1 = 15$