57805249 has 2 divisors, whose sum is σ = 57805250. Its totient is φ = 57805248.

The previous prime is 57805243. The next prime is 57805261. The reversal of 57805249 is 94250875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47610000 + 10195249 = 6900^2 + 3193^2 .

It is a cyclic number.

It is not a de Polignac number, because 57805249 - 2¹¹ = 57803201 is a prime.

It is not a weakly prime, because it can be changed into another prime (57805243) 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, 28902624 + 28902625.

It is an arithmetic number, because the mean of its divisors is an integer number (28902625).

Almost surely, 2^57805249 is an apocalyptic number.

It is an amenable number.

57805249 is a deficient number, since it is larger than the sum of its proper divisors (1).

57805249 is an equidigital number, since it uses as much as digits as its factorization.

57805249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 57805249 is about 7602.9763250980. The cubic root of 57805249 is about 386.6539270311.

The spelling of 57805249 in words is "fifty-seven million, eight hundred five thousand, two hundred forty-nine".