520434520 has 32 divisors (see below), whose sum is σ = 1187025120. Its totient is φ = 205320960.

The previous prime is 520434469. The next prime is 520434527. The reversal of 520434520 is 25434025.

520434520 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520434527) 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, 86196 + ... + 92035.

It is an arithmetic number, because the mean of its divisors is an integer number (37094535).

Almost surely, 2^520434520 is an apocalyptic number.

It is an amenable number.

520434520 is an abundant number, since it is smaller than the sum of its proper divisors (666590600).

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

520434520 is a wasteful number, since it uses less digits than its factorization.

520434520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178315 (or 178311 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 520434520 is about 22813.0339937502. The cubic root of 520434520 is about 804.3690747116.

Adding to 520434520 its reverse (25434025), we get a palindrome (545868545).

The spelling of 520434520 in words is "five hundred twenty million, four hundred thirty-four thousand, five hundred twenty".