55556 has 24 divisors (see below), whose sum is σ = 110880. Its totient is φ = 24192.

The previous prime is 55547. The next prime is 55579. The reversal of 55556 is 65555.

It is a plaindrome in base 10.

It is an unprimeable number.

55556 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271 + ... + 1313.

It is an arithmetic number, because the mean of its divisors is an integer number (4620).

2⁵⁵⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

55556 is a deficient number, since it is larger than the sum of its proper divisors (55324).

55556 is a wasteful number, since it uses less digits than its factorization.

55556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 81 counting only the distinct ones).

The product of its digits is 3750, while the sum is 26.

The square root of 55556 is about 235.7032032027. The cubic root of 55556 is about 38.1572431706.

Subtracting 55556 from its reverse (65555), we obtain a palindrome (9999).

The spelling of 55556 in words is "fifty-five thousand, five hundred fifty-six".