557893 has 4 divisors (see below), whose sum is σ = 637600. Its totient is φ = 478188.

The previous prime is 557891. The next prime is 557899. The reversal of 557893 is 398755.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 557893 - 2¹ = 557891 is a prime.

It is a super-2 number, since 2×557893² = 622489198898, which contains 22 as substring.

It is a d-powerful number, because it can be written as 5⁵ + 5⁵ + 8³ + 7 + 9⁶ + 3⁹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39843 + ... + 39856.

It is an arithmetic number, because the mean of its divisors is an integer number (159400).

2⁵⁵⁷⁸⁹³ is an apocalyptic number.

It is an amenable number.

557893 is a deficient number, since it is larger than the sum of its proper divisors (79707).

557893 is an equidigital number, since it uses as much as digits as its factorization.

557893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79706.

The product of its digits is 37800, while the sum is 37.

The square root of 557893 is about 746.9223520554. The cubic root of 557893 is about 82.3222005013.

It can be divided in two parts, 5578 and 93, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 557893 in words is "five hundred fifty-seven thousand, eight hundred ninety-three".