556478871 has 8 divisors (see below), whose sum is σ = 799046640. Its totient is φ = 342448512.

The previous prime is 556478869. The next prime is 556478887. The reversal of 556478871 is 178874655.

It is a happy number.

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

It is not a de Polignac number, because 556478871 - 2¹ = 556478869 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556478801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7134306 + ... + 7134383.

It is an arithmetic number, because the mean of its divisors is an integer number (99880830).

Almost surely, 2^556478871 is an apocalyptic number.

556478871 is a deficient number, since it is larger than the sum of its proper divisors (242567769).

556478871 is a wasteful number, since it uses less digits than its factorization.

556478871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14268705.

The product of its digits is 1881600, while the sum is 51.

The square root of 556478871 is about 23589.8043866413. The cubic root of 556478871 is about 822.5258577188.

The spelling of 556478871 in words is "five hundred fifty-six million, four hundred seventy-eight thousand, eight hundred seventy-one".