475280209 has 2 divisors, whose sum is σ = 475280210. Its totient is φ = 475280208.

The previous prime is 475280191. The next prime is 475280233. The reversal of 475280209 is 902082574.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466560000 + 8720209 = 21600^2 + 2953^2 .

It is a cyclic number.

It is not a de Polignac number, because 475280209 - 2²⁵ = 441725777 is a prime.

It is not a weakly prime, because it can be changed into another prime (475280249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237640104 + 237640105.

It is an arithmetic number, because the mean of its divisors is an integer number (237640105).

Almost surely, 2^475280209 is an apocalyptic number.

It is an amenable number.

475280209 is a deficient number, since it is larger than the sum of its proper divisors (1).

475280209 is an equidigital number, since it uses as much as digits as its factorization.

475280209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 475280209 is about 21800.9222052646. The cubic root of 475280209 is about 780.3987710025.

The spelling of 475280209 in words is "four hundred seventy-five million, two hundred eighty thousand, two hundred nine".