5558

5558 = 2 x 7 x 397.

5558 is the smallest number whose digital product is equal to 10³ (A089386).

5558 is 1010110110110 in base 2 (binary) and 21121212 in base 3. It is 12666 in base 8 (A043447) and 7555 in base 9 (A043475). 5558 is 2050 in base 14.

5558 is a number n such that 1 + n + n³ + n⁵ + n⁷ + n⁹ + . . . + n⁴¹ is prime (A244386).

5558 is a value n such that 90n + 11, 90n + 13, 90n + 17, 90n + 19 are all primes (A051897).

5558 is an integer n such that 6n -/+ 1 and 30n -/+ 1 are all primes (A216847).

5558 divides 79⁹ - 1.

Source: OEIS