56009329 has 2 divisors, whose sum is σ = 56009330. Its totient is φ = 56009328.

The previous prime is 56009311. The next prime is 56009389. The reversal of 56009329 is 92390065.

It is a happy number.

56009329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28729600 + 27279729 = 5360^2 + 5223^2 .

It is a cyclic number.

It is not a de Polignac number, because 56009329 - 2¹⁹ = 55485041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56009294 and 56009303.

It is not a weakly prime, because it can be changed into another prime (56009309) by changing a digit.

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 as a sum of consecutive naturals, namely, 28004664 + 28004665.

It is an arithmetic number, because the mean of its divisors is an integer number (28004665).

Almost surely, 2^56009329 is an apocalyptic number.

It is an amenable number.

56009329 is a deficient number, since it is larger than the sum of its proper divisors (1).

56009329 is an equidigital number, since it uses as much as digits as its factorization.

56009329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 56009329 is about 7483.9380676219. The cubic root of 56009329 is about 382.6074802975.

The spelling of 56009329 in words is "fifty-six million, nine thousand, three hundred twenty-nine".