559969861 has 4 divisors (see below), whose sum is σ = 610876224. Its totient is φ = 509063500.

The previous prime is 559969811. The next prime is 559969867. The reversal of 559969861 is 168969955.

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 not a de Polignac number, because 559969861 - 2¹⁹ = 559445573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 559969796 and 559969805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (559969867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25453165 + ... + 25453186.

It is an arithmetic number, because the mean of its divisors is an integer number (152719056).

Almost surely, 2^559969861 is an apocalyptic number.

It is an amenable number.

559969861 is a deficient number, since it is larger than the sum of its proper divisors (50906363).

559969861 is a wasteful number, since it uses less digits than its factorization.

559969861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50906362.

The product of its digits is 5248800, while the sum is 58.

The square root of 559969861 is about 23663.6823212280. The cubic root of 559969861 is about 824.2422726229.

The spelling of 559969861 in words is "five hundred fifty-nine million, nine hundred sixty-nine thousand, eight hundred sixty-one".