475649065 has 4 divisors (see below), whose sum is σ = 570778884. Its totient is φ = 380519248.

The previous prime is 475649051. The next prime is 475649081. The reversal of 475649065 is 560946574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560946574 = 2 ⋅280473287.

It can be written as a sum of positive squares in 2 ways, for example, as 204947856 + 270701209 = 14316^2 + 16453^2 .

It is a cyclic number.

It is not a de Polignac number, because 475649065 - 2⁵ = 475649033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47564902 + ... + 47564911.

It is an arithmetic number, because the mean of its divisors is an integer number (142694721).

Almost surely, 2^475649065 is an apocalyptic number.

It is an amenable number.

475649065 is a deficient number, since it is larger than the sum of its proper divisors (95129819).

475649065 is an equidigital number, since it uses as much as digits as its factorization.

475649065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95129818.

The product of its (nonzero) digits is 907200, while the sum is 46.

The square root of 475649065 is about 21809.3802066909. The cubic root of 475649065 is about 780.6006030512.

The spelling of 475649065 in words is "four hundred seventy-five million, six hundred forty-nine thousand, sixty-five".