520223752 has 32 divisors (see below), whose sum is σ = 1019491200. Its totient is φ = 248396544.

The previous prime is 520223723. The next prime is 520223771. The reversal of 520223752 is 257322025.

It is a self number, because there is not a number n which added to its sum of digits gives 520223752.

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, 131824 + ... + 135712.

It is an arithmetic number, because the mean of its divisors is an integer number (31859100).

Almost surely, 2^520223752 is an apocalyptic number.

It is an amenable number.

520223752 is a deficient number, since it is larger than the sum of its proper divisors (499267448).

520223752 is a wasteful number, since it uses less digits than its factorization.

520223752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645 (or 4641 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 520223752 is about 22808.4140614818. The cubic root of 520223752 is about 804.2604743363.

Adding to 520223752 its reverse (257322025), we get a palindrome (777545777).

The spelling of 520223752 in words is "five hundred twenty million, two hundred twenty-three thousand, seven hundred fifty-two".