A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5530350 can be evenly divided by 1 2 3 5 6 7 10 14 15 21 23 25 30 35 42 46 50 69 70 75 105 115 138 150 161 175 210 229 230 322 345 350 458 483 525 575 687 690 805 966 1,050 1,145 1,150 1,374 1,603 1,610 1,725 2,290 2,415 3,206 3,435 3,450 4,025 4,809 4,830 5,267 5,725 6,870 8,015 8,050 9,618 10,534 11,450 12,075 15,801 16,030 17,175 24,045 24,150 26,335 31,602 34,350 36,869 40,075 48,090 52,670 73,738 79,005 80,150 110,607 120,225 131,675 158,010 184,345 221,214 240,450 263,350 368,690 395,025 553,035 790,050 921,725 1,106,070 1,843,450 2,765,175 and 5,530,350, with no remainder.
Since 5,530,350 cannot be divided by just 1 and 5,530,350, it is not a prime number.