520450120 has 16 divisors (see below), whose sum is σ = 1171012860. Its totient is φ = 208180032.

The previous prime is 520450081. The next prime is 520450157. The reversal of 520450120 is 21054025.

It can be written as a sum of positive squares in 2 ways, for example, as 464230116 + 56220004 = 21546^2 + 7498^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6505587 + ... + 6505666.

Almost surely, 2^520450120 is an apocalyptic number.

It is an amenable number.

520450120 is an abundant number, since it is smaller than the sum of its proper divisors (650562740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520450120 is a wasteful number, since it uses less digits than its factorization.

520450120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13011264 (or 13011260 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 520450120 is about 22813.3759009928. The cubic root of 520450120 is about 804.3771116063.

The spelling of 520450120 in words is "five hundred twenty million, four hundred fifty thousand, one hundred twenty".