556723988 has 12 divisors (see below), whose sum is σ = 987613620. Its totient is φ = 274548672.

The previous prime is 556723969. The next prime is 556724017. The reversal of 556723988 is 889327655.

556723988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 381108484 + 175615504 = 19522^2 + 13252^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953003 + ... + 953586.

It is an arithmetic number, because the mean of its divisors is an integer number (82301135).

Almost surely, 2^556723988 is an apocalyptic number.

It is an amenable number.

556723988 is a deficient number, since it is larger than the sum of its proper divisors (430889632).

556723988 is a wasteful number, since it uses less digits than its factorization.

556723988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906666 (or 1906664 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 53.

The square root of 556723988 is about 23594.9992159356. Note that the first 3 decimals coincide. The cubic root of 556723988 is about 822.6466083205.

The spelling of 556723988 in words is "five hundred fifty-six million, seven hundred twenty-three thousand, nine hundred eighty-eight".