56416109 has 2 divisors, whose sum is σ = 56416110. Its totient is φ = 56416108.

The previous prime is 56416099. The next prime is 56416117. The reversal of 56416109 is 90161465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50055625 + 6360484 = 7075^2 + 2522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56416109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56416169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28208054 + 28208055.

It is an arithmetic number, because the mean of its divisors is an integer number (28208055).

Almost surely, 2^56416109 is an apocalyptic number.

It is an amenable number.

56416109 is a deficient number, since it is larger than the sum of its proper divisors (1).

56416109 is an equidigital number, since it uses as much as digits as its factorization.

56416109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 56416109 is about 7511.0657699157. The cubic root of 56416109 is about 383.5315037521.

The spelling of 56416109 in words is "fifty-six million, four hundred sixteen thousand, one hundred nine".