520941 has 4 divisors (see below), whose sum is σ = 694592. Its totient is φ = 347292.

The previous prime is 520921. The next prime is 520943. The reversal of 520941 is 149025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 520941 - 2⁷ = 520813 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520943) 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, 86821 + ... + 86826.

It is an arithmetic number, because the mean of its divisors is an integer number (173648).

2⁵²⁰⁹⁴¹ is an apocalyptic number.

It is an amenable number.

520941 is a deficient number, since it is larger than the sum of its proper divisors (173651).

520941 is a wasteful number, since it uses less digits than its factorization.

520941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173650.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 520941 is about 721.7624262872. The cubic root of 520941 is about 80.4629923898.

Adding to 520941 its reverse (149025), we get a palindrome (669966).

The spelling of 520941 in words is "five hundred twenty thousand, nine hundred forty-one".