556255871 has 4 divisors (see below), whose sum is σ = 561454632. Its totient is φ = 551057112.

The previous prime is 556255831. The next prime is 556255879. The reversal of 556255871 is 178552655.

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 556255871 - 2⁶ = 556255807 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 (556255879) 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 3 ways as a sum of consecutive naturals, for example, 2599220 + ... + 2599433.

It is an arithmetic number, because the mean of its divisors is an integer number (140363658).

Almost surely, 2^556255871 is an apocalyptic number.

556255871 is a deficient number, since it is larger than the sum of its proper divisors (5198761).

556255871 is a wasteful number, since it uses less digits than its factorization.

556255871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5198760.

The product of its digits is 420000, while the sum is 44.

The square root of 556255871 is about 23585.0772947642. The cubic root of 556255871 is about 822.4159716820.

The spelling of 556255871 in words is "five hundred fifty-six million, two hundred fifty-five thousand, eight hundred seventy-one".