557098 has 4 divisors (see below), whose sum is σ = 835650. Its totient is φ = 278548.

The previous prime is 557093. The next prime is 557153. The reversal of 557098 is 890755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 890755 = 5 ⋅178151.

It can be written as a sum of positive squares in only one way, i.e., 485809 + 71289 = 697^2 + 267^2 .

It is not an unprimeable number, because it can be changed into a prime (557093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139273 + ... + 139276.

2⁵⁵⁷⁰⁹⁸ is an apocalyptic number.

557098 is a deficient number, since it is larger than the sum of its proper divisors (278552).

557098 is a wasteful number, since it uses less digits than its factorization.

557098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278551.

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

The square root of 557098 is about 746.3899784965. The cubic root of 557098 is about 82.2830787456.

The spelling of 557098 in words is "five hundred fifty-seven thousand, ninety-eight".