556417871 has 8 divisors (see below), whose sum is σ = 589854384. Its totient is φ = 523059840.

The previous prime is 556417811. The next prime is 556417879. The reversal of 556417871 is 178714655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556417871 is a prime.

It is a super-3 number, since 3×556417871³ (a number of 27 digits) 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 (556417879) 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 7 ways as a sum of consecutive naturals, for example, 4685 + ... + 33686.

It is an arithmetic number, because the mean of its divisors is an integer number (73731798).

Almost surely, 2^556417871 is an apocalyptic number.

556417871 is a deficient number, since it is larger than the sum of its proper divisors (33436513).

556417871 is a wasteful number, since it uses less digits than its factorization.

556417871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39241.

The product of its digits is 235200, while the sum is 44.

The square root of 556417871 is about 23588.5114197569. The cubic root of 556417871 is about 822.4958021238.

The spelling of 556417871 in words is "five hundred fifty-six million, four hundred seventeen thousand, eight hundred seventy-one".