557916 has 24 divisors (see below), whose sum is σ = 1370880. Its totient is φ = 176112.

The previous prime is 557903. The next prime is 557927. The reversal of 557916 is 619755.

It is a super-2 number, since 2×557916² = 622540526112, which contains 22 as substring.

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, 996 + ... + 1451.

It is an arithmetic number, because the mean of its divisors is an integer number (57120).

2⁵⁵⁷⁹¹⁶ is an apocalyptic number.

It is an amenable number.

557916 is an abundant number, since it is smaller than the sum of its proper divisors (812964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

557916 is a wasteful number, since it uses less digits than its factorization.

557916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473 (or 2471 counting only the distinct ones).

The product of its digits is 9450, while the sum is 33.

The square root of 557916 is about 746.9377484101. The cubic root of 557916 is about 82.3233317724.

The spelling of 557916 in words is "five hundred fifty-seven thousand, nine hundred sixteen".