520481 has 4 divisors (see below), whose sum is σ = 560532. Its totient is φ = 480432.

The previous prime is 520451. The next prime is 520529. The reversal of 520481 is 184025.

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

It can be written as a sum of positive squares in 2 ways, for example, as 234256 + 286225 = 484^2 + 535^2 .

It is a cyclic number.

It is not a de Polignac number, because 520481 - 2¹⁰ = 519457 is a prime.

It is a super-3 number, since 3×520481³ = 422995644703333923, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian 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, 20006 + ... + 20031.

It is an arithmetic number, because the mean of its divisors is an integer number (140133).

2⁵²⁰⁴⁸¹ is an apocalyptic number.

It is an amenable number.

520481 is a deficient number, since it is larger than the sum of its proper divisors (40051).

520481 is a wasteful number, since it uses less digits than its factorization.

520481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40050.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 520481 is about 721.4436914964. The cubic root of 520481 is about 80.4393020063.

It can be divided in two parts, 520 and 481, that added together give a palindrome (1001).

The spelling of 520481 in words is "five hundred twenty thousand, four hundred eighty-one".