475506538 has 16 divisors (see below), whose sum is σ = 769446216. Its totient is φ = 219087360.

The previous prime is 475506527. The next prime is 475506539. The reversal of 475506538 is 835605574.

It can be written as a sum of positive squares in 4 ways, for example, as 414244609 + 61261929 = 20353^2 + 7827^2 .

It is a super-2 number, since 2×475506538² = 452212935361490888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 475506494 and 475506503.

It is not an unprimeable number, because it can be changed into a prime (475506539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3 + ... + 30838.

Almost surely, 2^475506538 is an apocalyptic number.

475506538 is a deficient number, since it is larger than the sum of its proper divisors (293939678).

475506538 is a wasteful number, since it uses less digits than its factorization.

475506538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31449.

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 475506538 is about 21806.1123999671. The cubic root of 475506538 is about 780.5226269517.

The spelling of 475506538 in words is "four hundred seventy-five million, five hundred six thousand, five hundred thirty-eight".