520684252 has 24 divisors (see below), whose sum is σ = 1001871360. Its totient is φ = 234808560.

The previous prime is 520684231. The next prime is 520684271. The reversal of 520684252 is 252486025.

It is a super-2 number, since 2×520684252² = 542224180561599008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41002 + ... + 52177.

It is an arithmetic number, because the mean of its divisors is an integer number (41744640).

Almost surely, 2^520684252 is an apocalyptic number.

It is an amenable number.

520684252 is a deficient number, since it is larger than the sum of its proper divisors (481187108).

520684252 is a wasteful number, since it uses less digits than its factorization.

520684252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93321 (or 93319 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 520684252 is about 22818.5067872549. The cubic root of 520684252 is about 804.4977137419.

The spelling of 520684252 in words is "five hundred twenty million, six hundred eighty-four thousand, two hundred fifty-two".