475216565 has 8 divisors (see below), whose sum is σ = 575492280. Its totient is φ = 376684992.

The previous prime is 475216537. The next prime is 475216597. The reversal of 475216565 is 565612574.

It can be written as a sum of positive squares in 4 ways, for example, as 174055249 + 301161316 = 13193^2 + 17354^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 475216565 - 2¹⁰ = 475215541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435434 + ... + 436523.

It is an arithmetic number, because the mean of its divisors is an integer number (71936535).

Almost surely, 2^475216565 is an apocalyptic number.

It is an amenable number.

475216565 is a deficient number, since it is larger than the sum of its proper divisors (100275715).

475216565 is a wasteful number, since it uses less digits than its factorization.

475216565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872071.

The product of its digits is 252000, while the sum is 41.

The square root of 475216565 is about 21799.4624933735. The cubic root of 475216565 is about 780.3639354707.

The spelling of 475216565 in words is "four hundred seventy-five million, two hundred sixteen thousand, five hundred sixty-five".