520532530 has 32 divisors (see below), whose sum is σ = 1080832896. Its totient is φ = 176797824.

The previous prime is 520532521. The next prime is 520532599. The reversal of 520532530 is 35235025.

It is a super-2 number, since 2×520532530² = 541908229576401800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520532495 and 520532504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27259 + ... + 42238.

It is an arithmetic number, because the mean of its divisors is an integer number (33776028).

Almost surely, 2^520532530 is an apocalyptic number.

520532530 is an abundant number, since it is smaller than the sum of its proper divisors (560300366).

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

520532530 is a wasteful number, since it uses less digits than its factorization.

520532530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69618.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 520532530 is about 22815.1820067253. The cubic root of 520532530 is about 804.4195653828.

Adding to 520532530 its reverse (35235025), we get a palindrome (555767555).

The spelling of 520532530 in words is "five hundred twenty million, five hundred thirty-two thousand, five hundred thirty".