557642983 has 2 divisors, whose sum is σ = 557642984. Its totient is φ = 557642982.

The previous prime is 557642941. The next prime is 557643011. The reversal of 557642983 is 389246755.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557642983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557642923) 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, 278821491 + 278821492.

It is an arithmetic number, because the mean of its divisors is an integer number (278821492).

Almost surely, 2^557642983 is an apocalyptic number.

557642983 is a deficient number, since it is larger than the sum of its proper divisors (1).

557642983 is an equidigital number, since it uses as much as digits as its factorization.

557642983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 49.

The square root of 557642983 is about 23614.4655455083. The cubic root of 557642983 is about 823.0990123433.

The spelling of 557642983 in words is "five hundred fifty-seven million, six hundred forty-two thousand, nine hundred eighty-three".