556990886 has 16 divisors (see below), whose sum is σ = 856499184. Its totient is φ = 271556064.

The previous prime is 556990883. The next prime is 556990913. The reversal of 556990886 is 688099655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556990883) 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 7 ways as a sum of consecutive naturals, for example, 1160 + ... + 33396.

It is an arithmetic number, because the mean of its divisors is an integer number (53531199).

Almost surely, 2^556990886 is an apocalyptic number.

556990886 is a deficient number, since it is larger than the sum of its proper divisors (299508298).

556990886 is a wasteful number, since it uses less digits than its factorization.

556990886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32455.

The product of its (nonzero) digits is 4665600, while the sum is 56.

The square root of 556990886 is about 23600.6543553352. The cubic root of 556990886 is about 822.7780484727.

The spelling of 556990886 in words is "five hundred fifty-six million, nine hundred ninety thousand, eight hundred eighty-six".