A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5005560 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 59 60 70 84 101 105 118 120 140 168 177 202 210 236 280 295 303 354 404 413 420 472 505 590 606 707 708 808 826 840 885 1,010 1,180 1,212 1,239 1,414 1,416 1,515 1,652 1,770 2,020 2,065 2,121 2,360 2,424 2,478 2,828 3,030 3,304 3,535 3,540 4,040 4,130 4,242 4,956 5,656 5,959 6,060 6,195 7,070 7,080 8,260 8,484 9,912 10,605 11,918 12,120 12,390 14,140 16,520 16,968 17,877 21,210 23,836 24,780 28,280 29,795 35,754 41,713 42,420 47,672 49,560 59,590 71,508 83,426 84,840 89,385 119,180 125,139 143,016 166,852 178,770 208,565 238,360 250,278 333,704 357,540 417,130 500,556 625,695 715,080 834,260 1,001,112 1,251,390 1,668,520 2,502,780 and 5,005,560, with no remainder.
Since 5,005,560 cannot be divided by just 1 and 5,005,560, it is not a prime number.