556578 has 32 divisors (see below), whose sum is σ = 1350720. Its totient is φ = 168480.

The previous prime is 556573. The next prime is 556579. The reversal of 556578 is 875655.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (556573) 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, 126 + ... + 1062.

It is an arithmetic number, because the mean of its divisors is an integer number (42210).

2⁵⁵⁶⁵⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675360).

556578 is an abundant number, since it is smaller than the sum of its proper divisors (794142).

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

556578 is a wasteful number, since it uses less digits than its factorization.

556578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959 (or 953 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 556578 is about 746.0415538025. The cubic root of 556578 is about 82.2574695347.

The spelling of 556578 in words is "five hundred fifty-six thousand, five hundred seventy-eight".