505471 has 4 divisors (see below), whose sum is σ = 527472. Its totient is φ = 483472.

The previous prime is 505469. The next prime is 505481. The reversal of 505471 is 174505.

505471 = T₅₇₉ + T₅₈₀ + T₅₈₁.

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 505471 - 2¹ = 505469 is a prime.

It is a super-3 number, since 3×505471³ = 387444934555806333, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505411) 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, 10966 + ... + 11011.

It is an arithmetic number, because the mean of its divisors is an integer number (131868).

2⁵⁰⁵⁴⁷¹ is an apocalyptic number.

505471 is the 581-st centered triangular number.

505471 is a deficient number, since it is larger than the sum of its proper divisors (22001).

505471 is a wasteful number, since it uses less digits than its factorization.

505471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22000.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 505471 is about 710.9648373865. The cubic root of 505471 is about 79.6584921459.

Adding to 505471 its reverse (174505), we get a palindrome (679976).

The spelling of 505471 in words is "five hundred five thousand, four hundred seventy-one".