56068288721 has 2 divisors, whose sum is σ = 56068288722. Its totient is φ = 56068288720.

The previous prime is 56068288669. The next prime is 56068288739. The reversal of 56068288721 is 12788286065.

56068288721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50731255696 + 5337033025 = 225236^2 + 73055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56068288721 is a prime.

It is not a weakly prime, because it can be changed into another prime (56068288121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28034144360 + 28034144361.

It is an arithmetic number, because the mean of its divisors is an integer number (28034144361).

Almost surely, 2^56068288721 is an apocalyptic number.

It is an amenable number.

56068288721 is a deficient number, since it is larger than the sum of its proper divisors (1).

56068288721 is an equidigital number, since it uses as much as digits as its factorization.

56068288721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2580480, while the sum is 53.

The spelling of 56068288721 in words is "fifty-six billion, sixty-eight million, two hundred eighty-eight thousand, seven hundred twenty-one".