475531 has 4 divisors (see below), whose sum is σ = 543472. Its totient is φ = 407592.

The previous prime is 475529. The next prime is 475549. The reversal of 475531 is 135574.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 475531 - 2¹ = 475529 is a prime.

It is a super-2 number, since 2×475531² = 452259463922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 475496 and 475505.

It is not an unprimeable number, because it can be changed into a prime (475511) 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, 33960 + ... + 33973.

It is an arithmetic number, because the mean of its divisors is an integer number (135868).

2⁴⁷⁵⁵³¹ is an apocalyptic number.

475531 is a deficient number, since it is larger than the sum of its proper divisors (67941).

475531 is an equidigital number, since it uses as much as digits as its factorization.

475531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67940.

The product of its digits is 2100, while the sum is 25.

The square root of 475531 is about 689.5875578924. The cubic root of 475531 is about 78.0536011147.

The spelling of 475531 in words is "four hundred seventy-five thousand, five hundred thirty-one".