556004947 has 4 divisors (see below), whose sum is σ = 558454536. Its totient is φ = 553555360.

The previous prime is 556004887. The next prime is 556004959. The reversal of 556004947 is 749400655.

556004947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 556004947 - 2⁷ = 556004819 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556004987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1224454 + ... + 1224907.

It is an arithmetic number, because the mean of its divisors is an integer number (139613634).

Almost surely, 2^556004947 is an apocalyptic number.

556004947 is a deficient number, since it is larger than the sum of its proper divisors (2449589).

556004947 is a wasteful number, since it uses less digits than its factorization.

556004947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449588.

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 556004947 is about 23579.7571446357. The cubic root of 556004947 is about 822.2922906246.

The spelling of 556004947 in words is "five hundred fifty-six million, four thousand, nine hundred forty-seven".