556676831 has 2 divisors, whose sum is σ = 556676832. Its totient is φ = 556676830.

The previous prime is 556676819. The next prime is 556676863. The reversal of 556676831 is 138676655.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556676831 is a prime.

It is a super-2 number, since 2×556676831² = 619778188344405122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556676881) 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 as a sum of consecutive naturals, namely, 278338415 + 278338416.

It is an arithmetic number, because the mean of its divisors is an integer number (278338416).

Almost surely, 2^556676831 is an apocalyptic number.

556676831 is a deficient number, since it is larger than the sum of its proper divisors (1).

556676831 is an equidigital number, since it uses as much as digits as its factorization.

556676831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 47.

The square root of 556676831 is about 23593.9998940409. Note that the first 3 decimals coincide. The cubic root of 556676831 is about 822.6233803881.

The spelling of 556676831 in words is "five hundred fifty-six million, six hundred seventy-six thousand, eight hundred thirty-one".