552

Number
$552$ (five hundred and fifty-two) is:
 * $2^3 \times 3 \times 23$


 * The $44$th untouchable number after $2, 5, 52, 88, 96, 120, 124, \ldots, 406, 408, 426, 430, 448, 472, 474, 498, 516, 518, 520, 530, 540$.