556057831 has 12 divisors (see below), whose sum is σ = 657809640. Its totient is φ = 468540240.

The previous prime is 556057813. The next prime is 556057841. The reversal of 556057831 is 138750655.

It is not a de Polignac number, because 556057831 - 2⁹ = 556057319 is a prime.

It is a super-2 number, since 2×556057831² = 618400622832849122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556057841) 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, 93280 + ... + 99061.

It is an arithmetic number, because the mean of its divisors is an integer number (54817470).

Almost surely, 2^556057831 is an apocalyptic number.

556057831 is a deficient number, since it is larger than the sum of its proper divisors (101751809).

556057831 is a wasteful number, since it uses less digits than its factorization.

556057831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192414 (or 192407 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 556057831 is about 23580.8785035672. The cubic root of 556057831 is about 822.3183603728.

It can be divided in two parts, 55605 and 7831, that added together give a palindrome (63436).

The spelling of 556057831 in words is "five hundred fifty-six million, fifty-seven thousand, eight hundred thirty-one".