557112581 has 2 divisors, whose sum is σ = 557112582. Its totient is φ = 557112580.

The previous prime is 557112527. The next prime is 557112587. The reversal of 557112581 is 185211755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 474847681 + 82264900 = 21791^2 + 9070^2 .

It is a cyclic number.

It is not a de Polignac number, because 557112581 - 2¹⁰ = 557111557 is a prime.

It is a super-2 number, since 2×557112581² = 620748855816963122, 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 (557112587) 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 as a sum of consecutive naturals, namely, 278556290 + 278556291.

It is an arithmetic number, because the mean of its divisors is an integer number (278556291).

Almost surely, 2^557112581 is an apocalyptic number.

It is an amenable number.

557112581 is a deficient number, since it is larger than the sum of its proper divisors (1).

557112581 is an equidigital number, since it uses as much as digits as its factorization.

557112581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14000, while the sum is 35.

The square root of 557112581 is about 23603.2324269368. The cubic root of 557112581 is about 822.8379660798.

The spelling of 557112581 in words is "five hundred fifty-seven million, one hundred twelve thousand, five hundred eighty-one".