485485289 has 2 divisors, whose sum is σ = 485485290. Its totient is φ = 485485288.

The previous prime is 485485249. The next prime is 485485349. The reversal of 485485289 is 982584584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 350925289 + 134560000 = 18733^2 + 11600^2 .

It is a cyclic number.

It is not a de Polignac number, because 485485289 - 2²⁴ = 468708073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 485485289.

It is not a weakly prime, because it can be changed into another prime (485485249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242742644 + 242742645.

It is an arithmetic number, because the mean of its divisors is an integer number (242742645).

Almost surely, 2^485485289 is an apocalyptic number.

It is an amenable number.

485485289 is a deficient number, since it is larger than the sum of its proper divisors (1).

485485289 is an equidigital number, since it uses as much as digits as its factorization.

485485289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3686400, while the sum is 53.

The square root of 485485289 is about 22033.7307099819. The cubic root of 485485289 is about 785.9447637547.

The spelling of 485485289 in words is "four hundred eighty-five million, four hundred eighty-five thousand, two hundred eighty-nine".