520353756953 has 8 divisors (see below), whose sum is σ = 537193040640. Its totient is φ = 503517828240.

The previous prime is 520353756919. The next prime is 520353757013. The reversal of 520353756953 is 359657353025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520353756953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520353756895 and 520353756904.

It is not an unprimeable number, because it can be changed into a prime (520353726953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521618 + ... + 1145771.

It is an arithmetic number, because the mean of its divisors is an integer number (67149130080).

Almost surely, 2^520353756953 is an apocalyptic number.

It is an amenable number.

520353756953 is a deficient number, since it is larger than the sum of its proper divisors (16839283687).

520353756953 is a wasteful number, since it uses less digits than its factorization.

520353756953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677487.

The product of its (nonzero) digits is 12757500, while the sum is 53.

The spelling of 520353756953 in words is "five hundred twenty billion, three hundred fifty-three million, seven hundred fifty-six thousand, nine hundred fifty-three".