The number 5,522,790 can be evenly divided by 1 2 3 5 6 7 10 13 14 15 17 21 26 30 34 35 39 42 49 51 65 70 78 85 91 98 102 105 119 130 147 170 182 195 210 221 238 245 255 273 289 294 357 390 442 455 490 510 546 578 595 637 663 714 735 833 867 910 1,105 1,190 1,274 1,326 1,365 1,445 1,470 1,547 1,666 1,734 1,785 1,911 2,023 2,210 2,499 2,730 2,890 3,094 3,185 3,315 3,570 3,757 3,822 4,046 4,165 4,335 4,641 4,998 6,069 6,370 6,630 7,514 7,735 8,330 8,670 9,282 9,555 10,115 10,829 11,271 12,138 12,495 14,161 15,470 18,785 19,110 20,230 21,658 22,542 23,205 24,990 26,299 28,322 30,345 32,487 37,570 42,483 46,410 52,598 54,145 56,355 60,690 64,974 70,805 78,897 84,966 108,290 112,710 131,495 141,610 157,794 162,435 184,093 212,415 262,990 324,870 368,186 394,485 424,830 552,279 788,970 920,465 1,104,558 1,840,930 2,761,395 and 5,522,790, with no remainder.
Since 5,522,790 cannot be divided by just 1 and 5,522,790, it is a composite number.