• 567 can be written using four 4's:
567 is nontrivially palindromic in base 12.
567 is an esthetic number in base 6 and base 10, because in such bases its adjacent digits differ by 1.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
567 is an undulating number in base 12.
It is a straight-line number, since its digits are in arithmetic progression.
It is a plaindrome in base 10, base 13, base 15 and base 16.
It is a nialpdrome in base 3 and base 9.
It is a congruent number.
567 is an equidigital number, since it uses as much as digits as its factorization.
567 is an evil number, because the sum of its binary digits is even.
The square root of 567 is about 23.8117617996. The cubic root of 567 is about 8.2767725291.
Adding to 567 its sum of digits (18), we get a palindrome (585).
Adding to 567 its product of digits (210), we get a palindrome (777).