520061 has 4 divisors (see below), whose sum is σ = 521532. Its totient is φ = 518592.

The previous prime is 520043. The next prime is 520063. The reversal of 520061 is 160025.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 383161 + 136900 = 619^2 + 370^2 .

It is a cyclic number.

It is not a de Polignac number, because 520061 - 2⁶ = 519997 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520063) 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, 155 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (130383).

2⁵²⁰⁰⁶¹ is an apocalyptic number.

It is an amenable number.

520061 is a deficient number, since it is larger than the sum of its proper divisors (1471).

520061 is an equidigital number, since it uses as much as digits as its factorization.

520061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 520061 is about 721.1525497424. The cubic root of 520061 is about 80.4176594626.

Adding to 520061 its reverse (160025), we get a palindrome (680086).

The spelling of 520061 in words is "five hundred twenty thousand, sixty-one".