53051378161 has 2 divisors, whose sum is σ = 53051378162. Its totient is φ = 53051378160.

The previous prime is 53051378123. The next prime is 53051378179. The reversal of 53051378161 is 16187315035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43835378161 + 9216000000 = 209369^2 + 96000^2 .

It is a cyclic number.

It is not a de Polignac number, because 53051378161 - 2²⁹ = 52514507249 is a prime.

It is not a weakly prime, because it can be changed into another prime (53051378761) 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, 26525689080 + 26525689081.

It is an arithmetic number, because the mean of its divisors is an integer number (26525689081).

Almost surely, 2^53051378161 is an apocalyptic number.

It is an amenable number.

53051378161 is a deficient number, since it is larger than the sum of its proper divisors (1).

53051378161 is an equidigital number, since it uses as much as digits as its factorization.

53051378161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 53051378161 in words is "fifty-three billion, fifty-one million, three hundred seventy-eight thousand, one hundred sixty-one".