57385571 has 2 divisors, whose sum is σ = 57385572. Its totient is φ = 57385570.

The previous prime is 57385553. The next prime is 57385579. The reversal of 57385571 is 17558375.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57385571 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (57385579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28692785 + 28692786.

It is an arithmetic number, because the mean of its divisors is an integer number (28692786).

Almost surely, 2^57385571 is an apocalyptic number.

57385571 is a deficient number, since it is larger than the sum of its proper divisors (1).

57385571 is an equidigital number, since it uses as much as digits as its factorization.

57385571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147000, while the sum is 41.

The square root of 57385571 is about 7575.3264616121. The cubic root of 57385571 is about 385.7159243055.

The spelling of 57385571 in words is "fifty-seven million, three hundred eighty-five thousand, five hundred seventy-one".