475623517 has 4 divisors (see below), whose sum is σ = 475943580. Its totient is φ = 475303456.

The previous prime is 475623481. The next prime is 475623521. The reversal of 475623517 is 715326574.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 715326574 = 2 ⋅357663287.

It can be written as a sum of positive squares in 2 ways, for example, as 445800996 + 29822521 = 21114^2 + 5461^2 .

It is a cyclic number.

It is not a de Polignac number, because 475623517 - 2¹¹ = 475621469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 475623517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475603517) 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, 157792 + ... + 160777.

It is an arithmetic number, because the mean of its divisors is an integer number (118985895).

Almost surely, 2^475623517 is an apocalyptic number.

It is an amenable number.

475623517 is a deficient number, since it is larger than the sum of its proper divisors (320063).

475623517 is a wasteful number, since it uses less digits than its factorization.

475623517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320062.

The product of its digits is 176400, while the sum is 40.

The square root of 475623517 is about 21808.7944875456. The cubic root of 475623517 is about 780.5866269620.

The spelling of 475623517 in words is "four hundred seventy-five million, six hundred twenty-three thousand, five hundred seventeen".