520733473081 has 16 divisors (see below), whose sum is σ = 552665937600. Its totient is φ = 489261040128.

The previous prime is 520733473027. The next prime is 520733473103. The reversal of 520733473081 is 180374337025.

It is a cyclic number.

It is not a de Polignac number, because 520733473081 - 2²⁵ = 520699918649 is a prime.

It is a super-2 number, since 2×520733473081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520733473021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2413425 + ... + 2620321.

It is an arithmetic number, because the mean of its divisors is an integer number (34541621100).

Almost surely, 2^520733473081 is an apocalyptic number.

It is an amenable number.

520733473081 is a deficient number, since it is larger than the sum of its proper divisors (31932464519).

520733473081 is a wasteful number, since it uses less digits than its factorization.

520733473081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208008.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 520733473081 in words is "five hundred twenty billion, seven hundred thirty-three million, four hundred seventy-three thousand, eighty-one".