556673688 has 96 divisors (see below), whose sum is σ = 1571900400. Its totient is φ = 182518272.

The previous prime is 556673683. The next prime is 556673693. The reversal of 556673688 is 886376655.

556673688 is a `hidden beast` number, since 5 + 566 + 73 + 6 + 8 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (556673683) and next prime (556673693).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556673683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3415095 + ... + 3415257.

Almost surely, 2^556673688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556673688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (785950200).

556673688 is an abundant number, since it is smaller than the sum of its proper divisors (1015226712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

556673688 is a wasteful number, since it uses less digits than its factorization.

556673688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 265 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The square root of 556673688 is about 23593.9332880298. The cubic root of 556673688 is about 822.6218322067.

The spelling of 556673688 in words is "five hundred fifty-six million, six hundred seventy-three thousand, six hundred eighty-eight".