561122065 has 16 divisors (see below), whose sum is σ = 770698368. Its totient is φ = 384189696.

The previous prime is 561122063. The next prime is 561122083. The reversal of 561122065 is 560221165.

It is a cyclic number.

It is not a de Polignac number, because 561122065 - 2¹ = 561122063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561122063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12169 + ... + 35641.

It is an arithmetic number, because the mean of its divisors is an integer number (48168648).

Almost surely, 2^561122065 is an apocalyptic number.

It is an amenable number.

561122065 is a deficient number, since it is larger than the sum of its proper divisors (209576303).

561122065 is a wasteful number, since it uses less digits than its factorization.

561122065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24168.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 561122065 is about 23688.0152186712. The cubic root of 561122065 is about 824.8072105378.

The spelling of 561122065 in words is "five hundred sixty-one million, one hundred twenty-two thousand, sixty-five".