57366191 has 2 divisors, whose sum is σ = 57366192. Its totient is φ = 57366190.

The previous prime is 57366173. The next prime is 57366223. The reversal of 57366191 is 19166375.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57366191 - 2¹⁰ = 57365167 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57366121) 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, 28683095 + 28683096.

It is an arithmetic number, because the mean of its divisors is an integer number (28683096).

Almost surely, 2^57366191 is an apocalyptic number.

57366191 is a deficient number, since it is larger than the sum of its proper divisors (1).

57366191 is an equidigital number, since it uses as much as digits as its factorization.

57366191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34020, while the sum is 38.

The square root of 57366191 is about 7574.0472008035. The cubic root of 57366191 is about 385.6724986608.

The spelling of 57366191 in words is "fifty-seven million, three hundred sixty-six thousand, one hundred ninety-one".