556811006 has 4 divisors (see below), whose sum is σ = 835216512. Its totient is φ = 278405502.

The previous prime is 556810997. The next prime is 556811011. The reversal of 556811006 is 600118655.

It is a happy number.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 139202750 + ... + 139202753.

It is an arithmetic number, because the mean of its divisors is an integer number (208804128).

Almost surely, 2^556811006 is an apocalyptic number.

556811006 is a deficient number, since it is larger than the sum of its proper divisors (278405506).

556811006 is a wasteful number, since it uses less digits than its factorization.

556811006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278405505.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 556811006 is about 23596.8431363180. The cubic root of 556811006 is about 822.6894669810.

The spelling of 556811006 in words is "five hundred fifty-six million, eight hundred eleven thousand, six".