57327761 has 2 divisors, whose sum is σ = 57327762. Its totient is φ = 57327760.

The previous prime is 57327737. The next prime is 57327779. The reversal of 57327761 is 16772375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39137536 + 18190225 = 6256^2 + 4265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57327761 is a prime.

It is not a weakly prime, because it can be changed into another prime (57387761) 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, 28663880 + 28663881.

It is an arithmetic number, because the mean of its divisors is an integer number (28663881).

Almost surely, 2^57327761 is an apocalyptic number.

It is an amenable number.

57327761 is a deficient number, since it is larger than the sum of its proper divisors (1).

57327761 is an equidigital number, since it uses as much as digits as its factorization.

57327761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61740, while the sum is 38.

The square root of 57327761 is about 7571.5098230142. The cubic root of 57327761 is about 385.5863578825.

The spelling of 57327761 in words is "fifty-seven million, three hundred twenty-seven thousand, seven hundred sixty-one".