556319 has 4 divisors (see below), whose sum is σ = 559896. Its totient is φ = 552744.

The previous prime is 556313. The next prime is 556321. The reversal of 556319 is 913655.

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

It is a cyclic number.

It is not a de Polignac number, because 556319 - 2¹⁶ = 490783 is a prime.

It is a super-2 number, since 2×556319² = 618981659522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 556291 and 556300.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1544 + ... + 1869.

It is an arithmetic number, because the mean of its divisors is an integer number (139974).

2⁵⁵⁶³¹⁹ is an apocalyptic number.

556319 is a deficient number, since it is larger than the sum of its proper divisors (3577).

556319 is a wasteful number, since it uses less digits than its factorization.

556319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576.

The product of its digits is 4050, while the sum is 29.

The square root of 556319 is about 745.8679507795. The cubic root of 556319 is about 82.2447082265.

The spelling of 556319 in words is "five hundred fifty-six thousand, three hundred nineteen".