53438113273 has 2 divisors, whose sum is σ = 53438113274. Its totient is φ = 53438113272.

The previous prime is 53438113249. The next prime is 53438113283. The reversal of 53438113273 is 37231183435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52133675584 + 1304437689 = 228328^2 + 36117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53438113273 is a prime.

It is not a weakly prime, because it can be changed into another prime (53438113243) 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, 26719056636 + 26719056637.

It is an arithmetic number, because the mean of its divisors is an integer number (26719056637).

Almost surely, 2^53438113273 is an apocalyptic number.

It is an amenable number.

53438113273 is a deficient number, since it is larger than the sum of its proper divisors (1).

53438113273 is an equidigital number, since it uses as much as digits as its factorization.

53438113273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The spelling of 53438113273 in words is "fifty-three billion, four hundred thirty-eight million, one hundred thirteen thousand, two hundred seventy-three".