556317 has 6 divisors (see below), whose sum is σ = 803582. Its totient is φ = 370872.

The previous prime is 556313. The next prime is 556321. The reversal of 556317 is 713655.

It is an interprime number because it is at equal distance from previous prime (556313) and next prime (556321).

It can be written as a sum of positive squares in only one way, i.e., 527076 + 29241 = 726^2 + 171^2 .

It is not a de Polignac number, because 556317 - 2² = 556313 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 (556313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30898 + ... + 30915.

2⁵⁵⁶³¹⁷ is an apocalyptic number.

It is an amenable number.

556317 is a deficient number, since it is larger than the sum of its proper divisors (247265).

556317 is a wasteful number, since it uses less digits than its factorization.

556317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61819 (or 61816 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 556317 is about 745.8666100584. The cubic root of 556317 is about 82.2446096682.

The spelling of 556317 in words is "five hundred fifty-six thousand, three hundred seventeen".