556550 has 12 divisors (see below), whose sum is σ = 1035276. Its totient is φ = 222600.

The previous prime is 556537. The next prime is 556559. The reversal of 556550 is 55655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556559) by changing a digit.

556550 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5516 + ... + 5615.

It is an arithmetic number, because the mean of its divisors is an integer number (86273).

2⁵⁵⁶⁵⁵⁰ is an apocalyptic number.

556550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

556550 is a deficient number, since it is larger than the sum of its proper divisors (478726).

556550 is a wasteful number, since it uses less digits than its factorization.

556550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11143 (or 11138 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 556550 is about 746.0227878557. The cubic root of 556550 is about 82.2560901247.

The spelling of 556550 in words is "five hundred fifty-six thousand, five hundred fifty".