557949 has 12 divisors (see below), whose sum is σ = 855456. Its totient is φ = 316872.

The previous prime is 557927. The next prime is 557981. The reversal of 557949 is 949755.

557949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 557949 - 2⁸ = 557693 is a prime.

It is a super-2 number, since 2×557949² = 622614173202, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3342 + ... + 3504.

It is an arithmetic number, because the mean of its divisors is an integer number (71288).

2⁵⁵⁷⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

557949 is a deficient number, since it is larger than the sum of its proper divisors (297507).

557949 is an equidigital number, since it uses as much as digits as its factorization.

557949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 173 counting only the distinct ones).

The product of its digits is 56700, while the sum is 39.

The square root of 557949 is about 746.9598382778. The cubic root of 557949 is about 82.3249548461.

The spelling of 557949 in words is "five hundred fifty-seven thousand, nine hundred forty-nine".