57449761 has 2 divisors, whose sum is σ = 57449762. Its totient is φ = 57449760.

The previous prime is 57449741. The next prime is 57449771. The reversal of 57449761 is 16794475.

57449761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57289761 + 160000 = 7569^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 57449761 - 2⁵ = 57449729 is a prime.

It is not a weakly prime, because it can be changed into another prime (57449701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28724880 + 28724881.

It is an arithmetic number, because the mean of its divisors is an integer number (28724881).

Almost surely, 2^57449761 is an apocalyptic number.

It is an amenable number.

57449761 is a deficient number, since it is larger than the sum of its proper divisors (1).

57449761 is an equidigital number, since it uses as much as digits as its factorization.

57449761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 43.

The square root of 57449761 is about 7579.5620585889. The cubic root of 57449761 is about 385.8596879663.

The spelling of 57449761 in words is "fifty-seven million, four hundred forty-nine thousand, seven hundred sixty-one".