A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 6952575 can be evenly divided by 1 3 5 7 15 17 19 21 25 35 41 51 57 75 85 95 105 119 123 133 175 205 255 285 287 323 357 399 425 475 525 595 615 665 697 779 861 969 1,025 1,275 1,425 1,435 1,615 1,785 1,995 2,091 2,261 2,337 2,975 3,075 3,325 3,485 3,895 4,305 4,845 4,879 5,453 6,783 7,175 8,075 8,925 9,975 10,455 11,305 11,685 13,243 14,637 16,359 17,425 19,475 21,525 24,225 24,395 27,265 33,915 39,729 52,275 56,525 58,425 66,215 73,185 81,795 92,701 121,975 136,325 169,575 198,645 278,103 331,075 365,925 408,975 463,505 993,225 1,390,515 2,317,525 and 6,952,575, with no remainder.
Since 6,952,575 cannot be divided by just 1 and 6,952,575, it is not a prime number.