56717273761 has 2 divisors, whose sum is σ = 56717273762. Its totient is φ = 56717273760.

The previous prime is 56717273737. The next prime is 56717273779. The reversal of 56717273761 is 16737271765.

56717273761 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., 31410827361 + 25306446400 = 177231^2 + 159080^2 .

It is a cyclic number.

It is not a de Polignac number, because 56717273761 - 2⁷ = 56717273633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56717273699 and 56717273708.

It is not a weakly prime, because it can be changed into another prime (56717273731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28358636880 + 28358636881.

It is an arithmetic number, because the mean of its divisors is an integer number (28358636881).

Almost surely, 2^56717273761 is an apocalyptic number.

It is an amenable number.

56717273761 is a deficient number, since it is larger than the sum of its proper divisors (1).

56717273761 is an equidigital number, since it uses as much as digits as its factorization.

56717273761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2593080, while the sum is 52.

The spelling of 56717273761 in words is "fifty-six billion, seven hundred seventeen million, two hundred seventy-three thousand, seven hundred sixty-one".