56448709 has 2 divisors, whose sum is σ = 56448710. Its totient is φ = 56448708.

The previous prime is 56448673. The next prime is 56448727. The reversal of 56448709 is 90784465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48692484 + 7756225 = 6978^2 + 2785^2 .

It is a cyclic number.

It is not a de Polignac number, because 56448709 - 2¹¹ = 56446661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56448779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28224354 + 28224355.

It is an arithmetic number, because the mean of its divisors is an integer number (28224355).

Almost surely, 2^56448709 is an apocalyptic number.

It is an amenable number.

56448709 is a deficient number, since it is larger than the sum of its proper divisors (1).

56448709 is an equidigital number, since it uses as much as digits as its factorization.

56448709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 56448709 is about 7513.2355879474. The cubic root of 56448709 is about 383.6053639769.

The spelling of 56448709 in words is "fifty-six million, four hundred forty-eight thousand, seven hundred nine".