A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4525752 can be evenly divided by 1 2 3 4 6 7 8 11 12 14 21 22 24 28 31 33 42 44 56 62 66 77 79 84 88 93 124 132 154 158 168 186 217 231 237 248 264 308 316 341 372 434 462 474 553 616 632 651 682 744 868 869 924 948 1,023 1,106 1,302 1,364 1,659 1,736 1,738 1,848 1,896 2,046 2,212 2,387 2,449 2,604 2,607 2,728 3,318 3,476 4,092 4,424 4,774 4,898 5,208 5,214 6,083 6,636 6,952 7,161 7,347 8,184 9,548 9,796 10,428 12,166 13,272 14,322 14,694 17,143 18,249 19,096 19,592 20,856 24,332 26,939 28,644 29,388 34,286 36,498 48,664 51,429 53,878 57,288 58,776 68,572 72,996 80,817 102,858 107,756 137,144 145,992 161,634 188,573 205,716 215,512 323,268 377,146 411,432 565,719 646,536 754,292 1,131,438 1,508,584 2,262,876 and 4,525,752, with no remainder.
Since 4,525,752 cannot be divided by just 1 and 4,525,752, it is not a prime number.