56065109 has 2 divisors, whose sum is σ = 56065110. Its totient is φ = 56065108.

The previous prime is 56065057. The next prime is 56065123. The reversal of 56065109 is 90156065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47914084 + 8151025 = 6922^2 + 2855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56065109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56065169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28032554 + 28032555.

It is an arithmetic number, because the mean of its divisors is an integer number (28032555).

Almost surely, 2^56065109 is an apocalyptic number.

It is an amenable number.

56065109 is a deficient number, since it is larger than the sum of its proper divisors (1).

56065109 is an equidigital number, since it uses as much as digits as its factorization.

56065109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 56065109 is about 7487.6637878580. The cubic root of 56065109 is about 382.7344517903.

The spelling of 56065109 in words is "fifty-six million, sixty-five thousand, one hundred nine".