557983109 has 2 divisors, whose sum is σ = 557983110. Its totient is φ = 557983108.

The previous prime is 557983073. The next prime is 557983121. The reversal of 557983109 is 901389755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 438693025 + 119290084 = 20945^2 + 10922^2 .

It is a cyclic number.

It is not a de Polignac number, because 557983109 - 2⁸ = 557982853 is a prime.

It is a super-2 number, since 2×557983109² = 622690299858611762, 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 (557983159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278991554 + 278991555.

It is an arithmetic number, because the mean of its divisors is an integer number (278991555).

Almost surely, 2^557983109 is an apocalyptic number.

It is an amenable number.

557983109 is a deficient number, since it is larger than the sum of its proper divisors (1).

557983109 is an equidigital number, since it uses as much as digits as its factorization.

557983109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 340200, while the sum is 47.

The square root of 557983109 is about 23621.6660928056. Note that the first 3 decimals coincide. The cubic root of 557983109 is about 823.2663239768.

It can be divided in two parts, 5579 and 83109, that added together give a palindrome (88688).

The spelling of 557983109 in words is "five hundred fifty-seven million, nine hundred eighty-three thousand, one hundred nine".