561407085 has 64 divisors (see below), whose sum is σ = 1039219200. Its totient is φ = 287207424.

The previous prime is 561407047. The next prime is 561407087. The reversal of 561407085 is 580704165.

561407085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 561407085 - 2¹¹ = 561405037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561407087) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 755224 + ... + 755966.

It is an arithmetic number, because the mean of its divisors is an integer number (16237800).

Almost surely, 2^561407085 is an apocalyptic number.

It is an amenable number.

561407085 is a deficient number, since it is larger than the sum of its proper divisors (477812115).

561407085 is a wasteful number, since it uses less digits than its factorization.

561407085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 561407085 is about 23694.0305773416. The cubic root of 561407085 is about 824.9468395498.

The spelling of 561407085 in words is "five hundred sixty-one million, four hundred seven thousand, eighty-five".