557317 has 4 divisors (see below), whose sum is σ = 562540. Its totient is φ = 552096.

The previous prime is 557309. The next prime is 557321. The reversal of 557317 is 713755.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148996 + 408321 = 386^2 + 639^2 .

It is a cyclic number.

It is not a de Polignac number, because 557317 - 2³ = 557309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557377) 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 in 3 ways as a sum of consecutive naturals, for example, 2448 + ... + 2665.

It is an arithmetic number, because the mean of its divisors is an integer number (140635).

2⁵⁵⁷³¹⁷ is an apocalyptic number.

It is an amenable number.

557317 is a deficient number, since it is larger than the sum of its proper divisors (5223).

557317 is a wasteful number, since it uses less digits than its factorization.

557317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5222.

The product of its digits is 3675, while the sum is 28.

The square root of 557317 is about 746.5366702313. The cubic root of 557317 is about 82.2938593943.

The spelling of 557317 in words is "five hundred fifty-seven thousand, three hundred seventeen".