557980 has 24 divisors (see below), whose sum is σ = 1223712. Its totient is φ = 213312.

The previous prime is 557927. The next prime is 557981. The reversal of 557980 is 89755.

557980 = T₃₀ + T₃₁ + ... + T₁₄₉.

It is a super-2 number, since 2×557980² = 622683360800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557981) by changing a digit.

557980 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147 + ... + 1066.

It is an arithmetic number, because the mean of its divisors is an integer number (50988).

2⁵⁵⁷⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

557980 is an abundant number, since it is smaller than the sum of its proper divisors (665732).

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

557980 is a wasteful number, since it uses less digits than its factorization.

557980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 557980 is about 746.9805887706. The cubic root of 557980 is about 82.3264794934.

The spelling of 557980 in words is "five hundred fifty-seven thousand, nine hundred eighty".