557890 has 16 divisors (see below), whose sum is σ = 1026432. Its totient is φ = 218224.

The previous prime is 557863. The next prime is 557891. The reversal of 557890 is 98755.

It is a super-2 number, since 2×557890² = 622482504200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (557891) by changing a digit.

557890 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, 124 + ... + 1063.

It is an arithmetic number, because the mean of its divisors is an integer number (64152).

2⁵⁵⁷⁸⁹⁰ is an apocalyptic number.

557890 is a deficient number, since it is larger than the sum of its proper divisors (468542).

557890 is a wasteful number, since it uses less digits than its factorization.

557890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241.

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

The square root of 557890 is about 746.9203438118. The cubic root of 557890 is about 82.3220529420.

The spelling of 557890 in words is "five hundred fifty-seven thousand, eight hundred ninety".