557863 has 2 divisors, whose sum is σ = 557864. Its totient is φ = 557862.

The previous prime is 557861. The next prime is 557891. The reversal of 557863 is 368755.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 557863 - 2¹ = 557861 is a prime.

It is a super-2 number, since 2×557863² = 622422253538, which contains 22 as substring.

Together with 557861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278931 + 278932.

It is an arithmetic number, because the mean of its divisors is an integer number (278932).

2⁵⁵⁷⁸⁶³ is an apocalyptic number.

557863 is a deficient number, since it is larger than the sum of its proper divisors (1).

557863 is an equidigital number, since it uses as much as digits as its factorization.

557863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 34.

The square root of 557863 is about 746.9022693767. The cubic root of 557863 is about 82.3207248837.

The spelling of 557863 in words is "five hundred fifty-seven thousand, eight hundred sixty-three".