475511521 has 8 divisors (see below), whose sum is σ = 492163200. Its totient is φ = 458876880.

The previous prime is 475511513. The next prime is 475511527. The reversal of 475511521 is 125115574.

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 475511521 - 2³ = 475511513 is a prime.

It is a super-2 number, since 2×475511521² = 452222413207466882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (475511527) 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, 83400 + ... + 88918.

It is an arithmetic number, because the mean of its divisors is an integer number (61520400).

Almost surely, 2^475511521 is an apocalyptic number.

It is an amenable number.

475511521 is a deficient number, since it is larger than the sum of its proper divisors (16651679).

475511521 is a wasteful number, since it uses less digits than its factorization.

475511521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8519.

The product of its digits is 7000, while the sum is 31.

The square root of 475511521 is about 21806.2266566226. The cubic root of 475511521 is about 780.5253533990.

The spelling of 475511521 in words is "four hundred seventy-five million, five hundred eleven thousand, five hundred twenty-one".