520533769248 has 72 divisors (see below), whose sum is σ = 1480588504668. Its totient is φ = 173473677312.

The previous prime is 520533769247. The next prime is 520533769291. The reversal of 520533769248 is 842967335025.

520533769248 is a `hidden beast` number, since 5 + 2 + 0 + 5 + 337 + 69 + 248 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 402986275344 + 117547493904 = 634812^2 + 342852^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×520533769248² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520533769194 and 520533769203.

It is not an unprimeable number, because it can be changed into a prime (520533769247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1152436 + ... + 1539212.

Almost surely, 2^520533769248 is an apocalyptic number.

It is an amenable number.

520533769248 is an abundant number, since it is smaller than the sum of its proper divisors (960054735420).

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

520533769248 is a wasteful number, since it uses less digits than its factorization.

520533769248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391466 (or 391455 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 54.

The spelling of 520533769248 in words is "five hundred twenty billion, five hundred thirty-three million, seven hundred sixty-nine thousand, two hundred forty-eight".