485005009 has 4 divisors (see below), whose sum is σ = 485178804. Its totient is φ = 484831216.

The previous prime is 485004997. The next prime is 485005049. The reversal of 485005009 is 900500584.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13897984 + 471107025 = 3728^2 + 21705^2 .

It is a cyclic number.

It is not a de Polignac number, because 485005009 - 2¹³ = 484996817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (485005049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82642 + ... + 88315.

It is an arithmetic number, because the mean of its divisors is an integer number (121294701).

Almost surely, 2^485005009 is an apocalyptic number.

It is an amenable number.

485005009 is a deficient number, since it is larger than the sum of its proper divisors (173795).

485005009 is a wasteful number, since it uses less digits than its factorization.

485005009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173794.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 485005009 is about 22022.8292687384. The cubic root of 485005009 is about 785.6855055763.

The spelling of 485005009 in words is "four hundred eighty-five million, five thousand, nine".