561126085 has 16 divisors (see below), whose sum is σ = 732631536. Its totient is φ = 410093568.

The previous prime is 561126047. The next prime is 561126113. The reversal of 561126085 is 580621165.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 12489156 + 548636929 = 3534^2 + 23423^2 .

It is a cyclic number.

It is not a de Polignac number, because 561126085 - 2¹¹ = 561124037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561126085.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 38194 + ... + 50803.

It is an arithmetic number, because the mean of its divisors is an integer number (45789471).

Almost surely, 2^561126085 is an apocalyptic number.

It is an amenable number.

561126085 is a deficient number, since it is larger than the sum of its proper divisors (171505451).

561126085 is a wasteful number, since it uses less digits than its factorization.

561126085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89112.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 561126085 is about 23688.1000715549. The cubic root of 561126085 is about 824.8091802323.

The spelling of 561126085 in words is "five hundred sixty-one million, one hundred twenty-six thousand, eighty-five".