520535141244 has 18 divisors (see below), whose sum is σ = 1315797162680. Its totient is φ = 173511713736.

The previous prime is 520535141221. The next prime is 520535141261. The reversal of 520535141244 is 442141535025.

520535141244 is a `hidden beast` number, since 5 + 20 + 5 + 351 + 41 + 244 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×520535141244² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 14459309479 = 520535141244 / (5 + 2 + 0 + 5 + 3 + 5 + 1 + 4 + 1 + 2 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 520535141199 and 520535141208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7229654704 + ... + 7229654775.

Almost surely, 2^520535141244 is an apocalyptic number.

It is an amenable number.

520535141244 is an abundant number, since it is smaller than the sum of its proper divisors (795262021436).

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

520535141244 is a wasteful number, since it uses less digits than its factorization.

520535141244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14459309489 (or 14459309484 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 520535141244 its reverse (442141535025), we get a palindrome (962676676269).

The spelling of 520535141244 in words is "five hundred twenty billion, five hundred thirty-five million, one hundred forty-one thousand, two hundred forty-four".