520320014 has 4 divisors (see below), whose sum is σ = 780480024. Its totient is φ = 260160006.

The previous prime is 520319993. The next prime is 520320023. The reversal of 520320014 is 410023025.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 520319974 and 520320001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130080002 + ... + 130080005.

It is an arithmetic number, because the mean of its divisors is an integer number (195120006).

Almost surely, 2^520320014 is an apocalyptic number.

520320014 is a deficient number, since it is larger than the sum of its proper divisors (260160010).

520320014 is a wasteful number, since it uses less digits than its factorization.

520320014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260160009.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 520320014 is about 22810.5241938891. The cubic root of 520320014 is about 804.3100779583.

Adding to 520320014 its reverse (410023025), we get a palindrome (930343039).

The spelling of 520320014 in words is "five hundred twenty million, three hundred twenty thousand, fourteen".