556650 has 36 divisors (see below), whose sum is σ = 1496742. Its totient is φ = 148320.

The previous prime is 556639. The next prime is 556651. The reversal of 556650 is 56655.

556650 is a `hidden beast` number, since 5 + 5 + 6 + 650 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 471969 + 84681 = 687^2 + 291^2 .

It is not an unprimeable number, because it can be changed into a prime (556651) by changing a digit.

556650 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 169 + ... + 1068.

2⁵⁵⁶⁶⁵⁰ is an apocalyptic number.

556650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

556650 is an abundant number, since it is smaller than the sum of its proper divisors (940092).

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

556650 is a wasteful number, since it uses less digits than its factorization.

556650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255 (or 1247 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 556650 is about 746.0898069268. The cubic root of 556650 is about 82.2610163766.

The spelling of 556650 in words is "five hundred fifty-six thousand, six hundred fifty".