5621
5621 is a natural number that follows 5620 and precedes 5622. In mathematics, it is a composite number with prime factorization 7 × 11 × 73, which makes it square-free.
Because it is a product of three distinct primes, its eight positive divisors are: 1, 7, 11,
5621 can also be expressed as 75^2 − 4, which equals (75 − 2)(75 + 2) = 73 × 77.