556680 has 32 divisors (see below), whose sum is σ = 1670400. Its totient is φ = 148416.

The previous prime is 556679. The next prime is 556687. The reversal of 556680 is 86655.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (556687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2200 + ... + 2439.

It is an arithmetic number, because the mean of its divisors is an integer number (52200).

2⁵⁵⁶⁶⁸⁰ is an apocalyptic number.

It is an amenable number.

556680 is an abundant number, since it is smaller than the sum of its proper divisors (1113720).

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

556680 is a wasteful number, since it uses less digits than its factorization.

556680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4653 (or 4649 counting only the distinct ones).

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

The square root of 556680 is about 746.1099114742. The cubic root of 556680 is about 82.2624941371.

The spelling of 556680 in words is "five hundred fifty-six thousand, six hundred eighty".