561859914 has 32 divisors (see below), whose sum is σ = 1401002496. Its totient is φ = 145937520.

The previous prime is 561859901. The next prime is 561859931. The reversal of 561859914 is 419958165.

561859914 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607612 + ... + 608535.

It is an arithmetic number, because the mean of its divisors is an integer number (43781328).

Almost surely, 2^561859914 is an apocalyptic number.

561859914 is an abundant number, since it is smaller than the sum of its proper divisors (839142582).

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

561859914 is a wasteful number, since it uses less digits than its factorization.

561859914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216170.

The product of its digits is 388800, while the sum is 48.

The square root of 561859914 is about 23703.5844124892. The cubic root of 561859914 is about 825.1685796917.

The spelling of 561859914 in words is "five hundred sixty-one million, eight hundred fifty-nine thousand, nine hundred fourteen".