475584521 has 2 divisors, whose sum is σ = 475584522. Its totient is φ = 475584520.

The previous prime is 475584479. The next prime is 475584539. The reversal of 475584521 is 125485574.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 440538121 + 35046400 = 20989^2 + 5920^2 .

It is a cyclic number.

It is not a de Polignac number, because 475584521 - 2¹⁰ = 475583497 is a prime.

It is a super-2 number, since 2×475584521² = 452361273229598882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (475584581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237792260 + 237792261.

It is an arithmetic number, because the mean of its divisors is an integer number (237792261).

Almost surely, 2^475584521 is an apocalyptic number.

It is an amenable number.

475584521 is a deficient number, since it is larger than the sum of its proper divisors (1).

475584521 is an equidigital number, since it uses as much as digits as its factorization.

475584521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224000, while the sum is 41.

The square root of 475584521 is about 21807.9004262217. The cubic root of 475584521 is about 780.5652931501.

The spelling of 475584521 in words is "four hundred seventy-five million, five hundred eighty-four thousand, five hundred twenty-one".