556430889589 has 2 divisors, whose sum is σ = 556430889590. Its totient is φ = 556430889588.

The previous prime is 556430889517. The next prime is 556430889601. The reversal of 556430889589 is 985988034655.

It is a happy number.

556430889589 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 480329391364 + 76101498225 = 693058^2 + 275865^2 .

It is a cyclic number.

It is not a de Polignac number, because 556430889589 - 2²⁵ = 556397335157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556430889389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278215444794 + 278215444795.

It is an arithmetic number, because the mean of its divisors is an integer number (278215444795).

Almost surely, 2^556430889589 is an apocalyptic number.

It is an amenable number.

556430889589 is a deficient number, since it is larger than the sum of its proper divisors (1).

556430889589 is an equidigital number, since it uses as much as digits as its factorization.

556430889589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248000, while the sum is 70.

The spelling of 556430889589 in words is "five hundred fifty-six billion, four hundred thirty million, eight hundred eighty-nine thousand, five hundred eighty-nine".