A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5909200 can be evenly divided by 1 2 4 5 8 10 11 16 17 20 22 25 34 40 44 50 55 68 79 80 85 88 100 110 136 158 170 176 187 200 220 272 275 316 340 374 395 400 425 440 550 632 680 748 790 850 869 880 935 1,100 1,264 1,343 1,360 1,496 1,580 1,700 1,738 1,870 1,975 2,200 2,686 2,992 3,160 3,400 3,476 3,740 3,950 4,345 4,400 4,675 5,372 6,320 6,715 6,800 6,952 7,480 7,900 8,690 9,350 10,744 13,430 13,904 14,773 14,960 15,800 17,380 18,700 21,488 21,725 26,860 29,546 31,600 33,575 34,760 37,400 43,450 53,720 59,092 67,150 69,520 73,865 74,800 86,900 107,440 118,184 134,300 147,730 173,800 236,368 268,600 295,460 347,600 369,325 537,200 590,920 738,650 1,181,840 1,477,300 2,954,600 and 5,909,200, with no remainder.
Since 5,909,200 cannot be divided by just 1 and 5,909,200, it is not a prime number.