57263591393 has 2 divisors, whose sum is σ = 57263591394. Its totient is φ = 57263591392.

The previous prime is 57263591381. The next prime is 57263591417. The reversal of 57263591393 is 39319536275.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32662609984 + 24600981409 = 180728^2 + 156847^2 .

It is a cyclic number.

It is not a de Polignac number, because 57263591393 - 2⁸ = 57263591137 is a prime.

It is not a weakly prime, because it can be changed into another prime (57263591293) 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, 28631795696 + 28631795697.

It is an arithmetic number, because the mean of its divisors is an integer number (28631795697).

Almost surely, 2^57263591393 is an apocalyptic number.

It is an amenable number.

57263591393 is a deficient number, since it is larger than the sum of its proper divisors (1).

57263591393 is an equidigital number, since it uses as much as digits as its factorization.

57263591393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4592700, while the sum is 53.

The spelling of 57263591393 in words is "fifty-seven billion, two hundred sixty-three million, five hundred ninety-one thousand, three hundred ninety-three".