68556 has 24 divisors (see below), whose sum is σ = 166320. Its totient is φ = 21952.

The previous prime is 68543. The next prime is 68567. The reversal of 68556 is 65586.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250 + ... + 446.

It is an arithmetic number, because the mean of its divisors is an integer number (6930).

2⁶⁸⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83160).

68556 is an abundant number, since it is smaller than the sum of its proper divisors (97764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68556 is a wasteful number, since it uses less digits than its factorization.

68556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 231 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 68556 is about 261.8320072107. The cubic root of 68556 is about 40.9274943012.

Adding to 68556 its sum of digits (30), we get a palindrome (68586).

It can be divided in two parts, 685 and 56, that added together give a triangular number (741 = T₃₈).

The spelling of 68556 in words is "sixty-eight thousand, five hundred fifty-six".