556789972903 has 4 divisors (see below), whose sum is σ = 569738576968. Its totient is φ = 543841368840.

The previous prime is 556789972889. The next prime is 556789972913. The reversal of 556789972903 is 309279987655.

556789972903 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 556789972903 - 2¹³ = 556789964711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556789972913) 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, 6474301968 + ... + 6474302053.

It is an arithmetic number, because the mean of its divisors is an integer number (142434644242).

Almost surely, 2^556789972903 is an apocalyptic number.

556789972903 is a deficient number, since it is larger than the sum of its proper divisors (12948604065).

556789972903 is a wasteful number, since it uses less digits than its factorization.

556789972903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12948604064.

The product of its (nonzero) digits is 257191200, while the sum is 70.

The spelling of 556789972903 in words is "five hundred fifty-six billion, seven hundred eighty-nine million, nine hundred seventy-two thousand, nine hundred three".