57185661593 has 2 divisors, whose sum is σ = 57185661594. Its totient is φ = 57185661592.

The previous prime is 57185661557. The next prime is 57185661613. The reversal of 57185661593 is 39516658175.

57185661593 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., 45938634889 + 11247026704 = 214333^2 + 106052^2 .

It is a cyclic number.

It is not a de Polignac number, because 57185661593 - 2¹⁸ = 57185399449 is a prime.

It is not a weakly prime, because it can be changed into another prime (57185661523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28592830796 + 28592830797.

It is an arithmetic number, because the mean of its divisors is an integer number (28592830797).

Almost surely, 2^57185661593 is an apocalyptic number.

It is an amenable number.

57185661593 is a deficient number, since it is larger than the sum of its proper divisors (1).

57185661593 is an equidigital number, since it uses as much as digits as its factorization.

57185661593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804000, while the sum is 56.

The spelling of 57185661593 in words is "fifty-seven billion, one hundred eighty-five million, six hundred sixty-one thousand, five hundred ninety-three".