520705504 has 24 divisors (see below), whose sum is σ = 1118334168. Its totient is φ = 236684160.

The previous prime is 520705501. The next prime is 520705513. The reversal of 520705504 is 405507025.

It is a super-2 number, since 2×520705504² = 542268443791788032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520705501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739287 + ... + 739990.

It is an arithmetic number, because the mean of its divisors is an integer number (46597257).

Almost surely, 2^520705504 is an apocalyptic number.

It is an amenable number.

520705504 is an abundant number, since it is smaller than the sum of its proper divisors (597628664).

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

520705504 is a wasteful number, since it uses less digits than its factorization.

520705504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479298 (or 1479290 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 520705504 is about 22818.9724571463. The cubic root of 520705504 is about 804.5086589246.

The spelling of 520705504 in words is "five hundred twenty million, seven hundred five thousand, five hundred four".