57243216353 has 2 divisors, whose sum is σ = 57243216354. Its totient is φ = 57243216352.

The previous prime is 57243216343. The next prime is 57243216367. The reversal of 57243216353 is 35361234275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56260519249 + 982697104 = 237193^2 + 31348^2 .

It is a cyclic number.

It is not a de Polignac number, because 57243216353 - 2¹⁰ = 57243215329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57243216353.

It is not a weakly prime, because it can be changed into another prime (57243216313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28621608176 + 28621608177.

It is an arithmetic number, because the mean of its divisors is an integer number (28621608177).

Almost surely, 2^57243216353 is an apocalyptic number.

It is an amenable number.

57243216353 is a deficient number, since it is larger than the sum of its proper divisors (1).

57243216353 is an equidigital number, since it uses as much as digits as its factorization.

57243216353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 453600, while the sum is 41.

The spelling of 57243216353 in words is "fifty-seven billion, two hundred forty-three million, two hundred sixteen thousand, three hundred fifty-three".