556120027 has 16 divisors (see below), whose sum is σ = 586598400. Its totient is φ = 526588128.

The previous prime is 556120009. The next prime is 556120049. The reversal of 556120027 is 720021655.

It is a cyclic number.

It is not a de Polignac number, because 556120027 - 2¹¹ = 556117979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 556119977 and 556120004.

It is not an unprimeable number, because it can be changed into a prime (556120057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345258 + ... + 346864.

It is an arithmetic number, because the mean of its divisors is an integer number (36662400).

Almost surely, 2^556120027 is an apocalyptic number.

556120027 is a deficient number, since it is larger than the sum of its proper divisors (30478373).

556120027 is a wasteful number, since it uses less digits than its factorization.

556120027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 556120027 is about 23582.1972470760. The cubic root of 556120027 is about 822.3490184586.

The spelling of 556120027 in words is "five hundred fifty-six million, one hundred twenty thousand, twenty-seven".