557903 has 2 divisors, whose sum is σ = 557904. Its totient is φ = 557902.

The previous prime is 557899. The next prime is 557927. The reversal of 557903 is 309755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 557903 - 2² = 557899 is a prime.

It is a super-2 number, since 2×557903² = 622511514818, 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 (557303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278951 + 278952.

It is an arithmetic number, because the mean of its divisors is an integer number (278952).

2⁵⁵⁷⁹⁰³ is an apocalyptic number.

557903 is a deficient number, since it is larger than the sum of its proper divisors (1).

557903 is an equidigital number, since it uses as much as digits as its factorization.

557903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4725, while the sum is 29.

The square root of 557903 is about 746.9290461617. The cubic root of 557903 is about 82.3226923621.

The spelling of 557903 in words is "five hundred fifty-seven thousand, nine hundred three".