556505841 has 4 divisors (see below), whose sum is σ = 742007792. Its totient is φ = 371003892.

The previous prime is 556505797. The next prime is 556505843. The reversal of 556505841 is 148505655.

556505841 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 556505841 - 2¹⁴ = 556489457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 556505841.

It is not an unprimeable number, because it can be changed into a prime (556505843) 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, 92750971 + ... + 92750976.

It is an arithmetic number, because the mean of its divisors is an integer number (185501948).

Almost surely, 2^556505841 is an apocalyptic number.

It is an amenable number.

556505841 is a deficient number, since it is larger than the sum of its proper divisors (185501951).

556505841 is a wasteful number, since it uses less digits than its factorization.

556505841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185501950.

The product of its (nonzero) digits is 120000, while the sum is 39.

The square root of 556505841 is about 23590.3760249810. The cubic root of 556505841 is about 822.5391455333.

The spelling of 556505841 in words is "five hundred fifty-six million, five hundred five thousand, eight hundred forty-one".