557878 has 16 divisors (see below), whose sum is σ = 900720. Its totient is φ = 258336.

The previous prime is 557863. The next prime is 557891. The reversal of 557878 is 878755.

It is a super-2 number, since 2×557878² = 622455725768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 557878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1876 + ... + 2152.

It is an arithmetic number, because the mean of its divisors is an integer number (56295).

2⁵⁵⁷⁸⁷⁸ is an apocalyptic number.

557878 is a deficient number, since it is larger than the sum of its proper divisors (342842).

557878 is a wasteful number, since it uses less digits than its factorization.

557878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351.

The product of its digits is 78400, while the sum is 40.

The square root of 557878 is about 746.9123107835. The cubic root of 557878 is about 82.3214626991.

The spelling of 557878 in words is "five hundred fifty-seven thousand, eight hundred seventy-eight".