556122889 has 4 divisors (see below), whose sum is σ = 635569024. Its totient is φ = 476676756.

The previous prime is 556122881. The next prime is 556122899. The reversal of 556122889 is 988221655.

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 a cyclic number.

It is not a de Polignac number, because 556122889 - 2³ = 556122881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556122881) 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 3 ways as a sum of consecutive naturals, for example, 39723057 + ... + 39723070.

It is an arithmetic number, because the mean of its divisors is an integer number (158892256).

Almost surely, 2^556122889 is an apocalyptic number.

It is an amenable number.

556122889 is a deficient number, since it is larger than the sum of its proper divisors (79446135).

556122889 is an equidigital number, since it uses as much as digits as its factorization.

556122889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79446134.

The product of its digits is 345600, while the sum is 46.

The square root of 556122889 is about 23582.2579283664. The cubic root of 556122889 is about 822.3504291605.

The spelling of 556122889 in words is "five hundred fifty-six million, one hundred twenty-two thousand, eight hundred eighty-nine".