57003649 has 2 divisors, whose sum is σ = 57003650. Its totient is φ = 57003648.

The previous prime is 57003631. The next prime is 57003679. The reversal of 57003649 is 94630075.

57003649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42510400 + 14493249 = 6520^2 + 3807^2 .

It is a cyclic number.

It is not a de Polignac number, because 57003649 - 2⁹ = 57003137 is a prime.

It is not a weakly prime, because it can be changed into another prime (57003679) 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, 28501824 + 28501825.

It is an arithmetic number, because the mean of its divisors is an integer number (28501825).

Almost surely, 2^57003649 is an apocalyptic number.

It is an amenable number.

57003649 is a deficient number, since it is larger than the sum of its proper divisors (1).

57003649 is an equidigital number, since it uses as much as digits as its factorization.

57003649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 57003649 is about 7550.0760923318. The cubic root of 57003649 is about 384.8583253388.

The spelling of 57003649 in words is "fifty-seven million, three thousand, six hundred forty-nine".