561327065 has 16 divisors (see below), whose sum is σ = 735630336. Its totient is φ = 408676800.

The previous prime is 561327043. The next prime is 561327071. The reversal of 561327065 is 560723165.

It is not a de Polignac number, because 561327065 - 2⁸ = 561326809 is a prime.

It is a Duffinian number.

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, 56201 + ... + 65430.

It is an arithmetic number, because the mean of its divisors is an integer number (45976896).

Almost surely, 2^561327065 is an apocalyptic number.

It is an amenable number.

561327065 is a deficient number, since it is larger than the sum of its proper divisors (174303271).

561327065 is a wasteful number, since it uses less digits than its factorization.

561327065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121720.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 561327065 is about 23692.3419061941. The cubic root of 561327065 is about 824.9076431660.

The spelling of 561327065 in words is "five hundred sixty-one million, three hundred twenty-seven thousand, sixty-five".