559749509 has 12 divisors (see below), whose sum is σ = 617979180. Its totient is φ = 506616000.

The previous prime is 559749499. The next prime is 559749529. The reversal of 559749509 is 905947955.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 209236225 + 350513284 = 14465^2 + 18722^2 .

It is not a de Polignac number, because 559749509 - 2⁴ = 559749493 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 (559749529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17609 + ... + 37809.

It is an arithmetic number, because the mean of its divisors is an integer number (51498265).

Almost surely, 2^559749509 is an apocalyptic number.

It is an amenable number.

559749509 is a deficient number, since it is larger than the sum of its proper divisors (58229671).

559749509 is a wasteful number, since it uses less digits than its factorization.

559749509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20452 (or 20441 counting only the distinct ones).

The product of its (nonzero) digits is 2551500, while the sum is 53.

The square root of 559749509 is about 23659.0259520547. The cubic root of 559749509 is about 824.1341434333.

The spelling of 559749509 in words is "five hundred fifty-nine million, seven hundred forty-nine thousand, five hundred nine".