556117589 has 2 divisors, whose sum is σ = 556117590. Its totient is φ = 556117588.

The previous prime is 556117567. The next prime is 556117619. The reversal of 556117589 is 985711655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 443439364 + 112678225 = 21058^2 + 10615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556117589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556117789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278058794 + 278058795.

It is an arithmetic number, because the mean of its divisors is an integer number (278058795).

Almost surely, 2^556117589 is an apocalyptic number.

It is an amenable number.

556117589 is a deficient number, since it is larger than the sum of its proper divisors (1).

556117589 is an equidigital number, since it uses as much as digits as its factorization.

556117589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 378000, while the sum is 47.

The square root of 556117589 is about 23582.1455554833. The cubic root of 556117589 is about 822.3478167456.

The spelling of 556117589 in words is "five hundred fifty-six million, one hundred seventeen thousand, five hundred eighty-nine".