557855 has 8 divisors (see below), whose sum is σ = 708912. Its totient is φ = 419968.

The previous prime is 557831. The next prime is 557857. The reversal of 557855 is 558755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 557855 - 2¹² = 553759 is a prime.

It is a super-2 number, since 2×557855² = 622404402050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3197 + ... + 3366.

It is an arithmetic number, because the mean of its divisors is an integer number (88614).

2⁵⁵⁷⁸⁵⁵ is an apocalyptic number.

557855 is a deficient number, since it is larger than the sum of its proper divisors (151057).

557855 is a wasteful number, since it uses less digits than its factorization.

557855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6585.

The product of its digits is 35000, while the sum is 35.

The square root of 557855 is about 746.8969139045. The cubic root of 557855 is about 82.3203313767.

Subtracting 557855 from its reverse (558755), we obtain a square (900 = 30²).

The spelling of 557855 in words is "five hundred fifty-seven thousand, eight hundred fifty-five".