556371 has 6 divisors (see below), whose sum is σ = 803660. Its totient is φ = 370908.

The previous prime is 556351. The next prime is 556373. The reversal of 556371 is 173655.

It is not a de Polignac number, because 556371 - 2⁷ = 556243 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 556371.

It is not an unprimeable number, because it can be changed into a prime (556373) 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, 30901 + ... + 30918.

2⁵⁵⁶³⁷¹ is an apocalyptic number.

556371 is a deficient number, since it is larger than the sum of its proper divisors (247289).

556371 is a wasteful number, since it uses less digits than its factorization.

556371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61825 (or 61822 counting only the distinct ones).

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

The square root of 556371 is about 745.9028086822. The cubic root of 556371 is about 82.2472706602.

The spelling of 556371 in words is "five hundred fifty-six thousand, three hundred seventy-one".