556630 has 8 divisors (see below), whose sum is σ = 1001952. Its totient is φ = 222648.

The previous prime is 556627. The next prime is 556639. The reversal of 556630 is 36655.

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

It is a junction number, because it is equal to n+sod(n) for n = 556595 and 556604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556639) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27822 + ... + 27841.

It is an arithmetic number, because the mean of its divisors is an integer number (125244).

2⁵⁵⁶⁶³⁰ is an apocalyptic number.

556630 is a deficient number, since it is larger than the sum of its proper divisors (445322).

556630 is a wasteful number, since it uses less digits than its factorization.

556630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55670.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 556630 is about 746.0764035942. The cubic root of 556630 is about 82.2600311734.

Adding to 556630 its sum of digits (25), we get a palindrome (556655).

The spelling of 556630 in words is "five hundred fifty-six thousand, six hundred thirty".