2611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a Duffinian number.
It is a plaindrome in base 13.
It is a nialpdrome in base 15 and base 16.
It is a congruent number.
2611 is the 30-th hex number.
2611 is an equidigital number, since it uses as much as digits as its factorization.
2611 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 380.
The square root of 2611 is about 51.0979451642. The cubic root of 2611 is about 13.7700533840.
Subtracting from 2611 its sum of digits (10), we obtain a square (2601 = 512).
Adding to 2611 its reverse (1162), we get a palindrome (3773).
The spelling of 2611 in words is "two thousand, six hundred eleven".