57289217 has 2 divisors, whose sum is σ = 57289218. Its totient is φ = 57289216.

The previous prime is 57289213. The next prime is 57289229. The reversal of 57289217 is 71298275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34210801 + 23078416 = 5849^2 + 4804^2 .

It is a cyclic number.

It is not a de Polignac number, because 57289217 - 2² = 57289213 is a prime.

It is not a weakly prime, because it can be changed into another prime (57289213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28644608 + 28644609.

It is an arithmetic number, because the mean of its divisors is an integer number (28644609).

Almost surely, 2^57289217 is an apocalyptic number.

It is an amenable number.

57289217 is a deficient number, since it is larger than the sum of its proper divisors (1).

57289217 is an equidigital number, since it uses as much as digits as its factorization.

57289217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 57289217 is about 7568.9640638597. The cubic root of 57289217 is about 385.4999228967.

The spelling of 57289217 in words is "fifty-seven million, two hundred eighty-nine thousand, two hundred seventeen".