559861720 has 128 divisors (see below), whose sum is σ = 1423319040. Its totient is φ = 196439040.

The previous prime is 559861717. The next prime is 559861727. The reversal of 559861720 is 27168955.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (559861727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2402724 + ... + 2402956.

It is an arithmetic number, because the mean of its divisors is an integer number (11119680).

Almost surely, 2^559861720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 559861720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711659520).

559861720 is an abundant number, since it is smaller than the sum of its proper divisors (863457320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

559861720 is a wasteful number, since it uses less digits than its factorization.

559861720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 559861720 is about 23661.3972537549. The cubic root of 559861720 is about 824.1892101706.

The spelling of 559861720 in words is "five hundred fifty-nine million, eight hundred sixty-one thousand, seven hundred twenty".