475021 has 4 divisors (see below), whose sum is σ = 486112. Its totient is φ = 463932.

The previous prime is 474983. The next prime is 475037. The reversal of 475021 is 120574.

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 a de Polignac number, because none of the positive numbers 2^k-475021 is a prime.

It is a Duffinian number.

475021 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 475021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475051) 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 3 ways as a sum of consecutive naturals, for example, 5481 + ... + 5566.

It is an arithmetic number, because the mean of its divisors is an integer number (121528).

2⁴⁷⁵⁰²¹ is an apocalyptic number.

It is an amenable number.

475021 is a deficient number, since it is larger than the sum of its proper divisors (11091).

475021 is a wasteful number, since it uses less digits than its factorization.

475021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11090.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 475021 is about 689.2176724374. The cubic root of 475021 is about 78.0256873537.

Adding to 475021 its reverse (120574), we get a palindrome (595595).

The spelling of 475021 in words is "four hundred seventy-five thousand, twenty-one".