475827521 has 8 divisors (see below), whose sum is σ = 513808680. Its totient is φ = 438043392.

The previous prime is 475827397. The next prime is 475827581. The reversal of 475827521 is 125728574.

It can be written as a sum of positive squares in 4 ways, for example, as 13104400 + 462723121 = 3620^2 + 21511^2 .

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 475827521 - 2¹⁰ = 475826497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (475827581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44216 + ... + 53913.

It is an arithmetic number, because the mean of its divisors is an integer number (64226085).

Almost surely, 2^475827521 is an apocalyptic number.

It is an amenable number.

475827521 is a deficient number, since it is larger than the sum of its proper divisors (37981159).

475827521 is a wasteful number, since it uses less digits than its factorization.

475827521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98515.

The product of its digits is 156800, while the sum is 41.

The square root of 475827521 is about 21813.4710901314. The cubic root of 475827521 is about 780.6982138416.

The spelling of 475827521 in words is "four hundred seventy-five million, eight hundred twenty-seven thousand, five hundred twenty-one".