57040289 has 2 divisors, whose sum is σ = 57040290. Its totient is φ = 57040288.

The previous prime is 57040201. The next prime is 57040297. The reversal of 57040289 is 98204075.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51955264 + 5085025 = 7208^2 + 2255^2 .

It is a cyclic number.

It is not a de Polignac number, because 57040289 - 2²⁰ = 55991713 is a prime.

It is not a weakly prime, because it can be changed into another prime (57040889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28520144 + 28520145.

It is an arithmetic number, because the mean of its divisors is an integer number (28520145).

Almost surely, 2^57040289 is an apocalyptic number.

It is an amenable number.

57040289 is a deficient number, since it is larger than the sum of its proper divisors (1).

57040289 is an equidigital number, since it uses as much as digits as its factorization.

57040289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 57040289 is about 7552.5021681559. The cubic root of 57040289 is about 384.9407656100.

The spelling of 57040289 in words is "fifty-seven million, forty thousand, two hundred eighty-nine".