520441121304365 has 4 divisors (see below), whose sum is σ = 624529345565244. Its totient is φ = 416352897043488.

The previous prime is 520441121304341. The next prime is 520441121304473. The reversal of 520441121304365 is 563403121144025.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 289441794714121 + 230999326590244 = 17012989^2 + 15198662^2 .

It is a cyclic number.

It is not a de Polignac number, because 520441121304365 - 2⁸ = 520441121304109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52044112130432 + ... + 52044112130441.

It is an arithmetic number, because the mean of its divisors is an integer number (156132336391311).

Almost surely, 2^{520441121304365} is an apocalyptic number.

It is an amenable number.

520441121304365 is a deficient number, since it is larger than the sum of its proper divisors (104088224260879).

520441121304365 is a wasteful number, since it uses less digits than its factorization.

520441121304365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104088224260878.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 520441121304365 in words is "five hundred twenty trillion, four hundred forty-one billion, one hundred twenty-one million, three hundred four thousand, three hundred sixty-five".