56448757 has 2 divisors, whose sum is σ = 56448758. Its totient is φ = 56448756.

The previous prime is 56448751. The next prime is 56448779. The reversal of 56448757 is 75784465.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28665316 + 27783441 = 5354^2 + 5271^2 .

It is a cyclic number.

It is not a de Polignac number, because 56448757 - 2¹⁹ = 55924469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56448751) 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, 28224378 + 28224379.

It is an arithmetic number, because the mean of its divisors is an integer number (28224379).

Almost surely, 2^56448757 is an apocalyptic number.

It is an amenable number.

56448757 is a deficient number, since it is larger than the sum of its proper divisors (1).

56448757 is an equidigital number, since it uses as much as digits as its factorization.

56448757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 940800, while the sum is 46.

The square root of 56448757 is about 7513.2387823095. The cubic root of 56448757 is about 383.6054727072.

The spelling of 56448757 in words is "fifty-six million, four hundred forty-eight thousand, seven hundred fifty-seven".