375

Number
$375$ (three hundred and seventy-five) is:


 * $3 \times 5^3$


 * The $16$th trimorphic number after $1, 4, 5, 6, 9, 24, 25, 49, 51, 75, 76, 99, 125, 249, 251$:
 * $375^3 = 52 \, 734 \, \mathbf {375}$