57365849 has 2 divisors, whose sum is σ = 57365850. Its totient is φ = 57365848.

The previous prime is 57365821. The next prime is 57365863. The reversal of 57365849 is 94856375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37295449 + 20070400 = 6107^2 + 4480^2 .

It is a cyclic number.

It is not a de Polignac number, because 57365849 - 2¹² = 57361753 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (57365449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28682924 + 28682925.

It is an arithmetic number, because the mean of its divisors is an integer number (28682925).

Almost surely, 2^57365849 is an apocalyptic number.

It is an amenable number.

57365849 is a deficient number, since it is larger than the sum of its proper divisors (1).

57365849 is an equidigital number, since it uses as much as digits as its factorization.

57365849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 47.

The square root of 57365849 is about 7574.0246236727. The cubic root of 57365849 is about 385.6717322380.

The spelling of 57365849 in words is "fifty-seven million, three hundred sixty-five thousand, eight hundred forty-nine".