504823039081 has 9 divisors (see below), whose sum is σ = 511885747269. Its totient is φ = 497856498336.

The previous prime is 504823039057. The next prime is 504823039093. The reversal of 504823039081 is 180930328405.

The square root of 504823039081 is 710509.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 110263179481 + 394559859600 = 332059^2 + 628140^2 .

It is not a de Polignac number, because 504823039081 - 2²⁷ = 504688821353 is a prime.

It is a super-2 number, since 2×504823039081² (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 (504823039051) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 51862291 + ... + 51872023.

It is an arithmetic number, because the mean of its divisors is an integer number (56876194141).

Almost surely, 2^504823039081 is an apocalyptic number.

504823039081 is the 710509-th square number.

504823039081 is the 355255-th centered octagonal number.

It is an amenable number.

504823039081 is a deficient number, since it is larger than the sum of its proper divisors (7062708188).

504823039081 is an frugal number, since it uses more digits than its factorization.

504823039081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19612 (or 9806 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 504823039081 in words is "five hundred four billion, eight hundred twenty-three million, thirty-nine thousand, eighty-one".