54517522769 has 2 divisors, whose sum is σ = 54517522770. Its totient is φ = 54517522768.

The previous prime is 54517522729. The next prime is 54517522789. The reversal of 54517522769 is 96722571545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41632321600 + 12885201169 = 204040^2 + 113513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54517522769 is a prime.

It is a super-2 number, since 2×54517522769² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54517522769.

It is not a weakly prime, because it can be changed into another prime (54517522729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27258761384 + 27258761385.

It is an arithmetic number, because the mean of its divisors is an integer number (27258761385).

Almost surely, 2^54517522769 is an apocalyptic number.

It is an amenable number.

54517522769 is a deficient number, since it is larger than the sum of its proper divisors (1).

54517522769 is an equidigital number, since it uses as much as digits as its factorization.

54517522769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292000, while the sum is 53.

The spelling of 54517522769 in words is "fifty-four billion, five hundred seventeen million, five hundred twenty-two thousand, seven hundred sixty-nine".