57395385181 has 2 divisors, whose sum is σ = 57395385182. Its totient is φ = 57395385180.

The previous prime is 57395385143. The next prime is 57395385211. The reversal of 57395385181 is 18158359375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50685317956 + 6710067225 = 225134^2 + 81915^2 .

It is a cyclic number.

It is not a de Polignac number, because 57395385181 - 2²³ = 57386996573 is a prime.

It is a super-2 number, since 2×57395385181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57395385781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28697692590 + 28697692591.

It is an arithmetic number, because the mean of its divisors is an integer number (28697692591).

Almost surely, 2^57395385181 is an apocalyptic number.

It is an amenable number.

57395385181 is a deficient number, since it is larger than the sum of its proper divisors (1).

57395385181 is an equidigital number, since it uses as much as digits as its factorization.

57395385181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536000, while the sum is 55.

The spelling of 57395385181 in words is "fifty-seven billion, three hundred ninety-five million, three hundred eighty-five thousand, one hundred eighty-one".