556349 has 4 divisors (see below), whose sum is σ = 563136. Its totient is φ = 549564.

The previous prime is 556343. The next prime is 556351. The reversal of 556349 is 943655.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 556349 - 2⁸ = 556093 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 (556343) 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, 3269 + ... + 3434.

It is an arithmetic number, because the mean of its divisors is an integer number (140784).

2⁵⁵⁶³⁴⁹ is an apocalyptic number.

It is an amenable number.

556349 is a deficient number, since it is larger than the sum of its proper divisors (6787).

556349 is an equidigital number, since it uses as much as digits as its factorization.

556349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6786.

The product of its digits is 16200, while the sum is 32.

The square root of 556349 is about 745.8880613068. Note that the first 3 decimals coincide. The cubic root of 556349 is about 82.2461865731.

The spelling of 556349 in words is "five hundred fifty-six thousand, three hundred forty-nine".