556549806 has 8 divisors (see below), whose sum is σ = 1113099624. Its totient is φ = 185516600.

The previous prime is 556549783. The next prime is 556549831. The reversal of 556549806 is 608945655.

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

556549806 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46379145 + ... + 46379156.

It is an arithmetic number, because the mean of its divisors is an integer number (139137453).

Almost surely, 2^556549806 is an apocalyptic number.

556549806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

556549806 is a wasteful number, since it uses less digits than its factorization.

556549806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92758306.

The product of its (nonzero) digits is 1296000, while the sum is 48.

The square root of 556549806 is about 23591.3078484428. The cubic root of 556549806 is about 822.5608056721.

The spelling of 556549806 in words is "five hundred fifty-six million, five hundred forty-nine thousand, eight hundred six".