• 530 can be written using four 4's:
530 is nontrivially palindromic in base 4 and base 16.
530 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.
It is a sphenic number, since it is the product of 3 distinct primes.
530 is an undulating number in base 16.
It is a Curzon number.
It is a plaindrome in base 7, base 14 and base 15.
It is a nialpdrome in base 5, base 10 and base 11.
It is an unprimeable number.
530 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
530 is a wasteful number, since it uses less digits than its factorization.
530 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 60.
The square root of 530 is about 23.0217288664. The cubic root of 530 is about 8.0926723346.
Adding to 530 its product of nonzero digits (15), we get a palindrome (545).
Subtracting from 530 its product of nonzero digits (15), we obtain a palindrome (515).
Adding to 530 its reverse (35), we get a palindrome (565).