57264191 has 2 divisors, whose sum is σ = 57264192. Its totient is φ = 57264190.

The previous prime is 57264187. The next prime is 57264199. The reversal of 57264191 is 19146275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57264191 - 2² = 57264187 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57264199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28632095 + 28632096.

It is an arithmetic number, because the mean of its divisors is an integer number (28632096).

Almost surely, 2^57264191 is an apocalyptic number.

57264191 is a deficient number, since it is larger than the sum of its proper divisors (1).

57264191 is an equidigital number, since it uses as much as digits as its factorization.

57264191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 57264191 is about 7567.3106847810. The cubic root of 57264191 is about 385.4437812892.

The spelling of 57264191 in words is "fifty-seven million, two hundred sixty-four thousand, one hundred ninety-one".