556530 has 32 divisors (see below), whose sum is σ = 1439424. Its totient is φ = 136896.

The previous prime is 556519. The next prime is 556537. The reversal of 556530 is 35655.

It is a self number, because there is not a number n which added to its sum of digits gives 556530.

It is not an unprimeable number, because it can be changed into a prime (556537) 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, 324 + ... + 1103.

It is an arithmetic number, because the mean of its divisors is an integer number (44982).

2⁵⁵⁶⁵³⁰ is an apocalyptic number.

556530 is an abundant number, since it is smaller than the sum of its proper divisors (882894).

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

556530 is a wasteful number, since it uses less digits than its factorization.

556530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 556530 is about 746.0093833190. The cubic root of 556530 is about 82.2551048035.

The spelling of 556530 in words is "five hundred fifty-six thousand, five hundred thirty".