573 = 3 x 191.
573 has the property that its square is the concatenation of two consecutive numbers: 5732 = 328329.
5733 = 188,132,517 = (188 - 132 + 517)3.
573 is 4243 in base 5 and 141 in base 22.
573 Recha is an asteroid (minor planet) discovered in 1905.
