556673109 has 8 divisors (see below), whose sum is σ = 785891520. Its totient is φ = 349285056.

The previous prime is 556673099. The next prime is 556673111. The reversal of 556673109 is 901376655.

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 556673109 - 2⁷ = 556672981 is a prime.

It is a Smith number, since the sum of its digits (42) 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 (556673149) 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, 5457529 + ... + 5457630.

It is an arithmetic number, because the mean of its divisors is an integer number (98236440).

Almost surely, 2^556673109 is an apocalyptic number.

It is an amenable number.

556673109 is a deficient number, since it is larger than the sum of its proper divisors (229218411).

556673109 is a wasteful number, since it uses less digits than its factorization.

556673109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10915179.

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 556673109 is about 23593.9210179232. The cubic root of 556673109 is about 822.6215470018.

The spelling of 556673109 in words is "five hundred fifty-six million, six hundred seventy-three thousand, one hundred nine".