A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5959350 can be evenly divided by 1 2 3 5 6 9 10 15 17 18 19 25 30 34 38 41 45 50 51 57 75 82 85 90 95 102 114 123 150 153 170 171 190 205 225 246 255 285 306 323 342 369 410 425 450 475 510 570 615 646 697 738 765 779 850 855 950 969 1,025 1,230 1,275 1,394 1,425 1,530 1,558 1,615 1,710 1,845 1,938 2,050 2,091 2,337 2,550 2,850 2,907 3,075 3,230 3,485 3,690 3,825 3,895 4,182 4,275 4,674 4,845 5,814 6,150 6,273 6,970 7,011 7,650 7,790 8,075 8,550 9,225 9,690 10,455 11,685 12,546 13,243 14,022 14,535 16,150 17,425 18,450 19,475 20,910 23,370 24,225 26,486 29,070 31,365 34,850 35,055 38,950 39,729 48,450 52,275 58,425 62,730 66,215 70,110 72,675 79,458 104,550 116,850 119,187 132,430 145,350 156,825 175,275 198,645 238,374 313,650 331,075 350,550 397,290 595,935 662,150 993,225 1,191,870 1,986,450 2,979,675 and 5,959,350, with no remainder.
Since 5,959,350 cannot be divided by just 1 and 5,959,350, it is not a prime number.