A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5502210 can be evenly divided by 1 2 3 5 6 7 10 14 15 19 21 30 35 38 42 49 57 70 95 98 105 114 133 147 190 197 210 245 266 285 294 394 399 490 570 591 665 735 798 931 985 1,182 1,330 1,379 1,470 1,862 1,970 1,995 2,758 2,793 2,955 3,743 3,990 4,137 4,655 5,586 5,910 6,895 7,486 8,274 9,310 9,653 11,229 13,790 13,965 18,715 19,306 20,685 22,458 26,201 27,930 28,959 37,430 41,370 48,265 52,402 56,145 57,918 78,603 96,530 112,290 131,005 144,795 157,206 183,407 262,010 289,590 366,814 393,015 550,221 786,030 917,035 1,100,442 1,834,070 2,751,105 and 5,502,210, with no remainder.
Since 5,502,210 cannot be divided by just 1 and 5,502,210, it is not a prime number.