556871 has 16 divisors (see below), whose sum is σ = 691200. Its totient is φ = 438048.

The previous prime is 556867. The next prime is 556883. The reversal of 556871 is 178655.

It is a cyclic number.

It is not a de Polignac number, because 556871 - 2² = 556867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7010 + ... + 7088.

It is an arithmetic number, because the mean of its divisors is an integer number (43200).

2⁵⁵⁶⁸⁷¹ is an apocalyptic number.

556871 is a deficient number, since it is larger than the sum of its proper divisors (134329).

556871 is a wasteful number, since it uses less digits than its factorization.

556871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158.

The product of its digits is 8400, while the sum is 32.

The square root of 556871 is about 746.2378977243. The cubic root of 556871 is about 82.2719013008.

The spelling of 556871 in words is "five hundred fifty-six thousand, eight hundred seventy-one".