53765720033317 has 2 divisors, whose sum is σ = 53765720033318. Its totient is φ = 53765720033316.

The previous prime is 53765720033269. The next prime is 53765720033341. The reversal of 53765720033317 is 71333002756735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45822082178401 + 7943637854916 = 6769201^2 + 2818446^2 .

It is a cyclic number.

It is not a de Polignac number, because 53765720033317 - 2²⁷ = 53765585815589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53765720033387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26882860016658 + 26882860016659.

It is an arithmetic number, because the mean of its divisors is an integer number (26882860016659).

Almost surely, 2^{53765720033317} is an apocalyptic number.

It is an amenable number.

53765720033317 is a deficient number, since it is larger than the sum of its proper divisors (1).

53765720033317 is an equidigital number, since it uses as much as digits as its factorization.

53765720033317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8334900, while the sum is 52.

The spelling of 53765720033317 in words is "fifty-three trillion, seven hundred sixty-five billion, seven hundred twenty million, thirty-three thousand, three hundred seventeen".