520460221 has 8 divisors (see below), whose sum is σ = 531191520. Its totient is φ = 509816208.

The previous prime is 520460207. The next prime is 520460231. The reversal of 520460221 is 122064025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520460221 - 2⁵ = 520460189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520460192 and 520460201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520460201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9706 + ... + 33691.

It is an arithmetic number, because the mean of its divisors is an integer number (66398940).

Almost surely, 2^520460221 is an apocalyptic number.

It is an amenable number.

520460221 is a deficient number, since it is larger than the sum of its proper divisors (10731299).

520460221 is a wasteful number, since it uses less digits than its factorization.

520460221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43643.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 520460221 is about 22813.5972831993. The cubic root of 520460221 is about 804.3823154099.

The spelling of 520460221 in words is "five hundred twenty million, four hundred sixty thousand, two hundred twenty-one".