57543197 has 2 divisors, whose sum is σ = 57543198. Its totient is φ = 57543196.

The previous prime is 57543179. The next prime is 57543247. The reversal of 57543197 is 79134575.

57543197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (57543179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55190041 + 2353156 = 7429^2 + 1534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57543197 is a prime.

It is a super-2 number, since 2×57543197² = 6622439041961618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57543127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28771598 + 28771599.

It is an arithmetic number, because the mean of its divisors is an integer number (28771599).

Almost surely, 2^57543197 is an apocalyptic number.

It is an amenable number.

57543197 is a deficient number, since it is larger than the sum of its proper divisors (1).

57543197 is an equidigital number, since it uses as much as digits as its factorization.

57543197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300, while the sum is 41.

The square root of 57543197 is about 7585.7232351306. The cubic root of 57543197 is about 386.0687614086.

The spelling of 57543197 in words is "fifty-seven million, five hundred forty-three thousand, one hundred ninety-seven".