520471 has 4 divisors (see below), whose sum is σ = 594832. Its totient is φ = 446112.

The previous prime is 520451. The next prime is 520529. The reversal of 520471 is 174025.

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 520471 - 2¹⁵ = 487703 is a prime.

It is a super-3 number, since 3×520471³ = 422971264129341333, which contains 333 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520411) 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, 37170 + ... + 37183.

It is an arithmetic number, because the mean of its divisors is an integer number (148708).

2⁵²⁰⁴⁷¹ is an apocalyptic number.

520471 is a deficient number, since it is larger than the sum of its proper divisors (74361).

520471 is an equidigital number, since it uses as much as digits as its factorization.

520471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74360.

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

The square root of 520471 is about 721.4367609153. The cubic root of 520471 is about 80.4387868429.

Adding to 520471 its reverse (174025), we get a palindrome (694496).

The spelling of 520471 in words is "five hundred twenty thousand, four hundred seventy-one".