556066 has 8 divisors (see below), whose sum is σ = 953280. Its totient is φ = 238308.

The previous prime is 556051. The next prime is 556067. The reversal of 556066 is 660655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (556067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19846 + ... + 19873.

It is an arithmetic number, because the mean of its divisors is an integer number (119160).

2⁵⁵⁶⁰⁶⁶ is an apocalyptic number.

556066 is a deficient number, since it is larger than the sum of its proper divisors (397214).

556066 is a wasteful number, since it uses less digits than its factorization.

556066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39728.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 556066 is about 745.6983304259. The cubic root of 556066 is about 82.2322387224.

The spelling of 556066 in words is "five hundred fifty-six thousand, sixty-six".