500000556 has 36 divisors (see below), whose sum is σ = 1282374296. Its totient is φ = 151514880.

The previous prime is 500000551. The next prime is 500000587. The reversal of 500000556 is 655000005.

It is not an unprimeable number, because it can be changed into a prime (500000551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170725 + ... + 173628.

Almost surely, 2^500000556 is an apocalyptic number.

It is an amenable number.

500000556 is an abundant number, since it is smaller than the sum of its proper divisors (782373740).

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

500000556 is a wasteful number, since it uses less digits than its factorization.

500000556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344382 (or 344369 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 500000556 is about 22360.6922075324. The cubic root of 500000556 is about 793.7008201823.

The spelling of 500000556 in words is "five hundred million, five hundred fifty-six", and thus it is an aban number.