520240219 has 4 divisors (see below), whose sum is σ = 520285896. Its totient is φ = 520194544.

The previous prime is 520240211. The next prime is 520240223. The reversal of 520240219 is 912042025.

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 is a cyclic number.

It is not a de Polignac number, because 520240219 - 2³ = 520240211 is a prime.

It is a super-2 number, since 2×520240219² = 541299770930335922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520240193 and 520240202.

It is not an unprimeable number, because it can be changed into a prime (520240211) 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, 9687 + ... + 33679.

It is an arithmetic number, because the mean of its divisors is an integer number (130071474).

Almost surely, 2^520240219 is an apocalyptic number.

520240219 is a deficient number, since it is larger than the sum of its proper divisors (45677).

520240219 is a wasteful number, since it uses less digits than its factorization.

520240219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45676.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 520240219 is about 22808.7750438291. The cubic root of 520240219 is about 804.2689601833.

The spelling of 520240219 in words is "five hundred twenty million, two hundred forty thousand, two hundred nineteen".