475532321 has 4 divisors (see below), whose sum is σ = 518762544. Its totient is φ = 432302100.

The previous prime is 475532311. The next prime is 475532329. The reversal of 475532321 is 123235574.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 475532321 - 2¹⁸ = 475270177 is a prime.

It is a super-2 number, since 2×475532321² = 452261976631294082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475532329) 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, 21615095 + ... + 21615116.

It is an arithmetic number, because the mean of its divisors is an integer number (129690636).

Almost surely, 2^475532321 is an apocalyptic number.

It is an amenable number.

475532321 is a deficient number, since it is larger than the sum of its proper divisors (43230223).

475532321 is a wasteful number, since it uses less digits than its factorization.

475532321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43230222.

The product of its digits is 25200, while the sum is 32.

The square root of 475532321 is about 21806.7035794042. The cubic root of 475532321 is about 780.5367339089.

Adding to 475532321 its reverse (123235574), we get a palindrome (598767895).

The spelling of 475532321 in words is "four hundred seventy-five million, five hundred thirty-two thousand, three hundred twenty-one".