520551113952 has 96 divisors (see below), whose sum is σ = 1397601741312. Its totient is φ = 169571856384.

The previous prime is 520551113933. The next prime is 520551114011. The reversal of 520551113952 is 259311155025.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×520551113952³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 520551113952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2950863 + ... + 3122289.

It is an arithmetic number, because the mean of its divisors is an integer number (14558351472).

Almost surely, 2^520551113952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520551113952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698800870656).

520551113952 is an abundant number, since it is smaller than the sum of its proper divisors (877050627360).

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

520551113952 is a wasteful number, since it uses less digits than its factorization.

520551113952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172160 (or 172152 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 39.

Adding to 520551113952 its reverse (259311155025), we get a palindrome (779862268977).

The spelling of 520551113952 in words is "five hundred twenty billion, five hundred fifty-one million, one hundred thirteen thousand, nine hundred fifty-two".