A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5329584 can be evenly divided by 1 2 3 4 6 8 9 12 13 16 18 24 26 27 36 39 48 52 54 72 73 78 104 108 117 144 146 156 169 208 216 219 234 292 312 338 351 432 438 468 507 584 624 657 676 702 876 936 949 1,014 1,168 1,314 1,352 1,404 1,521 1,752 1,872 1,898 1,971 2,028 2,628 2,704 2,808 2,847 3,042 3,504 3,796 3,942 4,056 4,563 5,256 5,616 5,694 6,084 7,592 7,884 8,112 8,541 9,126 10,512 11,388 12,168 12,337 15,184 15,768 17,082 18,252 22,776 24,336 24,674 25,623 31,536 34,164 36,504 37,011 45,552 49,348 51,246 68,328 73,008 74,022 98,696 102,492 111,033 136,656 148,044 197,392 204,984 222,066 296,088 333,099 409,968 444,132 592,176 666,198 888,264 1,332,396 1,776,528 2,664,792 and 5,329,584, with no remainder.
Since 5,329,584 cannot be divided by just 1 and 5,329,584, it is not a prime number.