556689171 has 8 divisors (see below), whose sum is σ = 774524160. Its totient is φ = 354990152.

The previous prime is 556689169. The next prime is 556689179. The reversal of 556689171 is 171986655.

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

It is a cyclic number.

It is not a de Polignac number, because 556689171 - 2¹ = 556689169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 556689171.

It is not an unprimeable number, because it can be changed into a prime (556689179) 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, 4033911 + ... + 4034048.

It is an arithmetic number, because the mean of its divisors is an integer number (96815520).

Almost surely, 2^556689171 is an apocalyptic number.

556689171 is a deficient number, since it is larger than the sum of its proper divisors (217834989).

556689171 is a wasteful number, since it uses less digits than its factorization.

556689171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8067985.

The product of its digits is 453600, while the sum is 48.

The square root of 556689171 is about 23594.2613997557. The cubic root of 556689171 is about 822.6294587786.

The spelling of 556689171 in words is "five hundred fifty-six million, six hundred eighty-nine thousand, one hundred seventy-one".