A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5042752 can be evenly divided by 1 2 4 8 11 13 16 19 22 26 29 32 38 44 52 58 64 76 88 104 116 143 152 176 208 209 232 247 286 304 319 352 377 416 418 464 494 551 572 608 638 704 754 832 836 928 988 1,102 1,144 1,216 1,276 1,508 1,672 1,856 1,976 2,204 2,288 2,552 2,717 3,016 3,344 3,952 4,147 4,408 4,576 5,104 5,434 6,032 6,061 6,688 7,163 7,904 8,294 8,816 9,152 10,208 10,868 12,064 12,122 13,376 14,326 15,808 16,588 17,632 20,416 21,736 24,128 24,244 28,652 33,176 35,264 43,472 48,488 57,304 66,352 78,793 86,944 96,976 114,608 132,704 157,586 173,888 193,952 229,216 265,408 315,172 387,904 458,432 630,344 1,260,688 2,521,376 and 5,042,752, with no remainder.
Since 5,042,752 cannot be divided by just 1 and 5,042,752, it is not a prime number.