520480449 has 12 divisors (see below), whose sum is σ = 796029156. Its totient is φ = 326575872.

The previous prime is 520480447. The next prime is 520480451. The reversal of 520480449 is 944084025.

520480449 is a `hidden beast` number, since 5 + 204 + 8 + 0 + 449 = 666.

It is an interprime number because it is at equal distance from previous prime (520480447) and next prime (520480451).

It can be written as a sum of positive squares in 2 ways, for example, as 479610000 + 40870449 = 21900^2 + 6393^2 .

It is not a de Polignac number, because 520480449 - 2¹ = 520480447 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (520480447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1700764 + ... + 1701069.

It is an arithmetic number, because the mean of its divisors is an integer number (66335763).

Almost surely, 2^520480449 is an apocalyptic number.

It is an amenable number.

520480449 is a deficient number, since it is larger than the sum of its proper divisors (275548707).

520480449 is a wasteful number, since it uses less digits than its factorization.

520480449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401856 (or 3401853 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 520480449 is about 22814.0406109922. The cubic root of 520480449 is about 804.3927362093.

The spelling of 520480449 in words is "five hundred twenty million, four hundred eighty thousand, four hundred forty-nine".