556991383 has 12 divisors (see below), whose sum is σ = 638614368. Its totient is φ = 483899520.

The previous prime is 556991381. The next prime is 556991411. The reversal of 556991383 is 383199655.

It is a happy number.

It is not a de Polignac number, because 556991383 - 2¹ = 556991381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556991381) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 94063 + ... + 99808.

It is an arithmetic number, because the mean of its divisors is an integer number (53217864).

Almost surely, 2^556991383 is an apocalyptic number.

556991383 is a deficient number, since it is larger than the sum of its proper divisors (81622985).

556991383 is a wasteful number, since it uses less digits than its factorization.

556991383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193914 (or 193901 counting only the distinct ones).

The product of its digits is 874800, while the sum is 49.

The square root of 556991383 is about 23600.6648847019. The cubic root of 556991383 is about 822.7782931928.

The spelling of 556991383 in words is "five hundred fifty-six million, nine hundred ninety-one thousand, three hundred eighty-three".