522550145022321 has 16 divisors (see below), whose sum is σ = 759368514735936. Its totient is φ = 317694990854976.

The previous prime is 522550145022247. The next prime is 522550145022349. The reversal of 522550145022321 is 123220541055225.

It is not a de Polignac number, because 522550145022321 - 2⁹ = 522550145021809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 522550145022321.

It is not an unprimeable number, because it can be changed into a prime (522550145072321) 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, 80715187530 + ... + 80715194003.

It is an arithmetic number, because the mean of its divisors is an integer number (47460532170996).

Almost surely, 2^{522550145022321} is an apocalyptic number.

It is an amenable number.

522550145022321 is a deficient number, since it is larger than the sum of its proper divisors (236818369713615).

522550145022321 is a wasteful number, since it uses less digits than its factorization.

522550145022321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161430381632.

The product of its (nonzero) digits is 240000, while the sum is 39.

Adding to 522550145022321 its reverse (123220541055225), we get a palindrome (645770686077546).

The spelling of 522550145022321 in words is "five hundred twenty-two trillion, five hundred fifty billion, one hundred forty-five million, twenty-two thousand, three hundred twenty-one".