520530534 has 12 divisors (see below), whose sum is σ = 1127816196. Its totient is φ = 173510172.

The previous prime is 520530533. The next prime is 520530553. The reversal of 520530534 is 435035025.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 520530498 and 520530507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520530533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14459164 + ... + 14459199.

It is an arithmetic number, because the mean of its divisors is an integer number (93984683).

Almost surely, 2^520530534 is an apocalyptic number.

520530534 is an abundant number, since it is smaller than the sum of its proper divisors (607285662).

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

520530534 is a wasteful number, since it uses less digits than its factorization.

520530534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28918371 (or 28918368 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 520530534 is about 22815.1382638808. The cubic root of 520530534 is about 804.4185371899.

Adding to 520530534 its reverse (435035025), we get a palindrome (955565559).

The spelling of 520530534 in words is "five hundred twenty million, five hundred thirty thousand, five hundred thirty-four".