556629 has 4 divisors (see below), whose sum is σ = 742176. Its totient is φ = 371084.

The previous prime is 556627. The next prime is 556639. The reversal of 556629 is 926655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 556629 - 2¹ = 556627 is a prime.

It is a D-number.

556629 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 556629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556627) 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, 92769 + ... + 92774.

It is an arithmetic number, because the mean of its divisors is an integer number (185544).

2⁵⁵⁶⁶²⁹ is an apocalyptic number.

It is an amenable number.

556629 is a deficient number, since it is larger than the sum of its proper divisors (185547).

556629 is a wasteful number, since it uses less digits than its factorization.

556629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185546.

The product of its digits is 16200, while the sum is 33.

The square root of 556629 is about 746.0757334212. The cubic root of 556629 is about 82.2599819126.

The spelling of 556629 in words is "five hundred fifty-six thousand, six hundred twenty-nine".