559816643 has 2 divisors, whose sum is σ = 559816644. Its totient is φ = 559816642.

The previous prime is 559816597. The next prime is 559816679. The reversal of 559816643 is 346618955.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 559816643 - 2²⁶ = 492707779 is a prime.

It is not a weakly prime, because it can be changed into another prime (559836643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279908321 + 279908322.

It is an arithmetic number, because the mean of its divisors is an integer number (279908322).

Almost surely, 2^559816643 is an apocalyptic number.

559816643 is a deficient number, since it is larger than the sum of its proper divisors (1).

559816643 is an equidigital number, since it uses as much as digits as its factorization.

559816643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 47.

The square root of 559816643 is about 23660.4446915099. Note that the first 3 decimals coincide. The cubic root of 559816643 is about 824.1670898429.

The spelling of 559816643 in words is "five hundred fifty-nine million, eight hundred sixteen thousand, six hundred forty-three".