520353330 has 64 divisors (see below), whose sum is σ = 1429505280. Its totient is φ = 118750464.

The previous prime is 520353307. The next prime is 520353343. The reversal of 520353330 is 33353025.

It is a self number, because there is not a number n which added to its sum of digits gives 520353330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165816 + ... + 168924.

It is an arithmetic number, because the mean of its divisors is an integer number (22336020).

Almost surely, 2^520353330 is an apocalyptic number.

520353330 is an abundant number, since it is smaller than the sum of its proper divisors (909151950).

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

520353330 is a wasteful number, since it uses less digits than its factorization.

520353330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923.

The product of its (nonzero) digits is 4050, while the sum is 24.

The square root of 520353330 is about 22811.2544591480. The cubic root of 520353330 is about 804.3272442033.

The spelling of 520353330 in words is "five hundred twenty million, three hundred fifty-three thousand, three hundred thirty".