557881 has 4 divisors (see below), whose sum is σ = 562932. Its totient is φ = 552832.

The previous prime is 557863. The next prime is 557891. The reversal of 557881 is 188755.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95481 + 462400 = 309^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 557881 - 2⁹ = 557369 is a prime.

It is a super-2 number, since 2×557881² = 622462420322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2356 + ... + 2581.

It is an arithmetic number, because the mean of its divisors is an integer number (140733).

2⁵⁵⁷⁸⁸¹ is an apocalyptic number.

It is an amenable number.

557881 is a deficient number, since it is larger than the sum of its proper divisors (5051).

557881 is a wasteful number, since it uses less digits than its factorization.

557881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050.

The product of its digits is 11200, while the sum is 34.

The square root of 557881 is about 746.9143190487. The cubic root of 557881 is about 82.3216102606.

The spelling of 557881 in words is "five hundred fifty-seven thousand, eight hundred eighty-one".