557706241 has 2 divisors, whose sum is σ = 557706242. Its totient is φ = 557706240.

The previous prime is 557706229. The next prime is 557706257. The reversal of 557706241 is 142607755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 551310400 + 6395841 = 23480^2 + 2529^2 .

It is a cyclic number.

It is not a de Polignac number, because 557706241 - 2²⁵ = 524151809 is a prime.

It is a super-2 number, since 2×557706241² = 622072502500700162, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 557706241.

It is not a weakly prime, because it can be changed into another prime (557706211) 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, 278853120 + 278853121.

It is an arithmetic number, because the mean of its divisors is an integer number (278853121).

Almost surely, 2^557706241 is an apocalyptic number.

It is an amenable number.

557706241 is a deficient number, since it is larger than the sum of its proper divisors (1).

557706241 is an equidigital number, since it uses as much as digits as its factorization.

557706241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 557706241 is about 23615.8048984150. The cubic root of 557706241 is about 823.1301347819.

The spelling of 557706241 in words is "five hundred fifty-seven million, seven hundred six thousand, two hundred forty-one".