53000071236449 has 2 divisors, whose sum is σ = 53000071236450. Its totient is φ = 53000071236448.

The previous prime is 53000071236421. The next prime is 53000071236473. The reversal of 53000071236449 is 94463217000035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42410936967424 + 10589134269025 = 6512368^2 + 3254095^2 .

It is a cyclic number.

It is not a de Polignac number, because 53000071236449 - 2⁴⁰ = 51900559608673 is a prime.

It is a super-2 number, since 2×53000071236449² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53000071236479) 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, 26500035618224 + 26500035618225.

It is an arithmetic number, because the mean of its divisors is an integer number (26500035618225).

Almost surely, 2^{53000071236449} is an apocalyptic number.

It is an amenable number.

53000071236449 is a deficient number, since it is larger than the sum of its proper divisors (1).

53000071236449 is an equidigital number, since it uses as much as digits as its factorization.

53000071236449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 53000071236449 in words is "fifty-three trillion, seventy-one million, two hundred thirty-six thousand, four hundred forty-nine".