556106013 has 8 divisors (see below), whose sum is σ = 823860800. Its totient is φ = 370737324.

The previous prime is 556106011. The next prime is 556106053. The reversal of 556106013 is 310601655.

It is a happy number.

556106013 is a `hidden beast` number, since 5 + 56 + 1 + 0 + 601 + 3 = 666.

It is not a de Polignac number, because 556106013 - 2¹ = 556106011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 20596519 = 556106013 / (5 + 5 + 6 + 1 + 0 + 6 + 0 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556106011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10298233 + ... + 10298286.

It is an arithmetic number, because the mean of its divisors is an integer number (102982600).

Almost surely, 2^556106013 is an apocalyptic number.

It is an amenable number.

556106013 is a deficient number, since it is larger than the sum of its proper divisors (267754787).

556106013 is a wasteful number, since it uses less digits than its factorization.

556106013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20596528 (or 20596522 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 556106013 is about 23581.9001142826. The cubic root of 556106013 is about 822.3421107795.

Adding to 556106013 its reverse (310601655), we get a palindrome (866707668).

The spelling of 556106013 in words is "five hundred fifty-six million, one hundred six thousand, thirteen".