A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5442150 can be evenly divided by 1 2 3 5 6 7 10 14 15 21 25 30 35 42 50 70 71 73 75 105 142 146 150 175 210 213 219 350 355 365 426 438 497 511 525 710 730 994 1,022 1,050 1,065 1,095 1,491 1,533 1,775 1,825 2,130 2,190 2,485 2,555 2,982 3,066 3,550 3,650 4,970 5,110 5,183 5,325 5,475 7,455 7,665 10,366 10,650 10,950 12,425 12,775 14,910 15,330 15,549 24,850 25,550 25,915 31,098 36,281 37,275 38,325 51,830 72,562 74,550 76,650 77,745 108,843 129,575 155,490 181,405 217,686 259,150 362,810 388,725 544,215 777,450 907,025 1,088,430 1,814,050 2,721,075 and 5,442,150, with no remainder.
Since 5,442,150 cannot be divided by just 1 and 5,442,150, it is not a prime number.