53895167993 has 2 divisors, whose sum is σ = 53895167994. Its totient is φ = 53895167992.

The previous prime is 53895167981. The next prime is 53895168007. The reversal of 53895167993 is 39976159835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40058821609 + 13836346384 = 200147^2 + 117628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53895167993 is a prime.

It is not a weakly prime, because it can be changed into another prime (53895167903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26947583996 + 26947583997.

It is an arithmetic number, because the mean of its divisors is an integer number (26947583997).

Almost surely, 2^53895167993 is an apocalyptic number.

It is an amenable number.

53895167993 is a deficient number, since it is larger than the sum of its proper divisors (1).

53895167993 is an equidigital number, since it uses as much as digits as its factorization.

53895167993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55112400, while the sum is 65.

The spelling of 53895167993 in words is "fifty-three billion, eight hundred ninety-five million, one hundred sixty-seven thousand, nine hundred ninety-three".