57186049 has 2 divisors, whose sum is σ = 57186050. Its totient is φ = 57186048.

The previous prime is 57186013. The next prime is 57186061. The reversal of 57186049 is 94068175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50126400 + 7059649 = 7080^2 + 2657^2 .

It is a cyclic number.

It is not a de Polignac number, because 57186049 - 2⁹ = 57185537 is a prime.

It is not a weakly prime, because it can be changed into another prime (57186749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28593024 + 28593025.

It is an arithmetic number, because the mean of its divisors is an integer number (28593025).

Almost surely, 2^57186049 is an apocalyptic number.

It is an amenable number.

57186049 is a deficient number, since it is larger than the sum of its proper divisors (1).

57186049 is an equidigital number, since it uses as much as digits as its factorization.

57186049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 57186049 is about 7562.1457933579. The cubic root of 57186049 is about 385.2683775567.

The spelling of 57186049 in words is "fifty-seven million, one hundred eighty-six thousand, forty-nine".