520659030 has 16 divisors (see below), whose sum is σ = 1249581744. Its totient is φ = 138842400.

The previous prime is 520658993. The next prime is 520659031. The reversal of 520659030 is 30956025.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 17355301 = 520659030 / (5 + 2 + 0 + 6 + 5 + 9 + 0 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520659031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8677621 + ... + 8677680.

It is an arithmetic number, because the mean of its divisors is an integer number (78098859).

Almost surely, 2^520659030 is an apocalyptic number.

520659030 is an abundant number, since it is smaller than the sum of its proper divisors (728922714).

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

520659030 is a wasteful number, since it uses less digits than its factorization.

520659030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17355311.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 520659030 is about 22817.9541151261. The cubic root of 520659030 is about 804.4847235475.

The spelling of 520659030 in words is "five hundred twenty million, six hundred fifty-nine thousand, thirty".