53549534448257 has 2 divisors, whose sum is σ = 53549534448258. Its totient is φ = 53549534448256.

The previous prime is 53549534448197. The next prime is 53549534448287. The reversal of 53549534448257 is 75284443594535.

53549534448257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52332839412736 + 1216695035521 = 7234144^2 + 1103039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53549534448257 is a prime.

It is not a weakly prime, because it can be changed into another prime (53549534448287) 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, 26774767224128 + 26774767224129.

It is an arithmetic number, because the mean of its divisors is an integer number (26774767224129).

Almost surely, 2^{53549534448257} is an apocalyptic number.

It is an amenable number.

53549534448257 is a deficient number, since it is larger than the sum of its proper divisors (1).

53549534448257 is an equidigital number, since it uses as much as digits as its factorization.

53549534448257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520000, while the sum is 68.

The spelling of 53549534448257 in words is "fifty-three trillion, five hundred forty-nine billion, five hundred thirty-four million, four hundred forty-eight thousand, two hundred fifty-seven".