57985489 has 2 divisors, whose sum is σ = 57985490. Its totient is φ = 57985488.

The previous prime is 57985483. The next prime is 57985513. The reversal of 57985489 is 98458975.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35820225 + 22165264 = 5985^2 + 4708^2 .

It is a cyclic number.

It is not a de Polignac number, because 57985489 - 2²¹ = 55888337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57985483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28992744 + 28992745.

It is an arithmetic number, because the mean of its divisors is an integer number (28992745).

Almost surely, 2^57985489 is an apocalyptic number.

It is an amenable number.

57985489 is a deficient number, since it is larger than the sum of its proper divisors (1).

57985489 is an equidigital number, since it uses as much as digits as its factorization.

57985489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 55.

The square root of 57985489 is about 7614.8203524443. The cubic root of 57985489 is about 387.0553795938.

It can be divided in two parts, 579 and 85489, that added together give a palindrome (86068).

The spelling of 57985489 in words is "fifty-seven million, nine hundred eighty-five thousand, four hundred eighty-nine".