6675

6675 = 3 x 5 x 5 x 89.

6675 is a composite number that is the sum of two, three, four, and five consecutive composite numbers (A151745).

6675 is a number n such that n and the square of n use only the digits 2, 4, 5, 6, and 7 (A137094).

6675 is 25314 in base 7.

6675 divides 34²⁰ - 1.

Source: OEIS