520461 has 6 divisors (see below), whose sum is σ = 751790. Its totient is φ = 346968.

The previous prime is 520451. The next prime is 520529. The reversal of 520461 is 164025.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 447561 + 72900 = 669^2 + 270^2 .

It is not a de Polignac number, because 520461 - 2¹³ = 512269 is a prime.

It is a Duffinian number.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28906 + ... + 28923.

2⁵²⁰⁴⁶¹ is an apocalyptic number.

It is an amenable number.

520461 is a deficient number, since it is larger than the sum of its proper divisors (231329).

520461 is a wasteful number, since it uses less digits than its factorization.

520461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57835 (or 57832 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 520461 is about 721.4298302676. The cubic root of 520461 is about 80.4382716730.

Adding to 520461 its reverse (164025), we get a palindrome (684486).

The spelling of 520461 in words is "five hundred twenty thousand, four hundred sixty-one".