556471 has 4 divisors (see below), whose sum is σ = 558000. Its totient is φ = 554944.

The previous prime is 556459. The next prime is 556477. The reversal of 556471 is 174655.

556471 is nontrivially palindromic in base 9.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 556471 - 2⁷ = 556343 is a prime.

It is a super-3 number, since 3×556471³ = 516950385909825333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135 + ... + 1063.

It is an arithmetic number, because the mean of its divisors is an integer number (139500).

2⁵⁵⁶⁴⁷¹ is an apocalyptic number.

556471 is a deficient number, since it is larger than the sum of its proper divisors (1529).

556471 is an equidigital number, since it uses as much as digits as its factorization.

556471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528.

The product of its digits is 4200, while the sum is 28.

The square root of 556471 is about 745.9698385324. The cubic root of 556471 is about 82.2521979685.

The spelling of 556471 in words is "five hundred fifty-six thousand, four hundred seventy-one".