520071556303 has 12 divisors (see below), whose sum is σ = 570282958560. Its totient is φ = 473989254336.

The previous prime is 520071556297. The next prime is 520071556349. The reversal of 520071556303 is 303655170025.

It is a de Polignac number, because none of the positive numbers 2^k-520071556303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520071556373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19463526 + ... + 19490227.

It is an arithmetic number, because the mean of its divisors is an integer number (47523579880).

Almost surely, 2^520071556303 is an apocalyptic number.

520071556303 is a deficient number, since it is larger than the sum of its proper divisors (50211402257).

520071556303 is a wasteful number, since it uses less digits than its factorization.

520071556303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38953858 (or 38953845 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 37.

The spelling of 520071556303 in words is "five hundred twenty billion, seventy-one million, five hundred fifty-six thousand, three hundred three".