522251423342321 has 8 divisors (see below), whose sum is σ = 553045933346760. Its totient is φ = 491465117564928.

The previous prime is 522251423342293. The next prime is 522251423342339. The reversal of 522251423342321 is 123243324152225.

It can be written as a sum of positive squares in 4 ways, for example, as 89400069535921 + 432851353806400 = 9455161^2 + 20805080^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 522251423342321 - 2¹⁴ = 522251423325937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (522251423342351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2050925696 + ... + 2051180321.

It is an arithmetic number, because the mean of its divisors is an integer number (69130741668345).

Almost surely, 2^{522251423342321} is an apocalyptic number.

It is an amenable number.

522251423342321 is a deficient number, since it is larger than the sum of its proper divisors (30794510004439).

522251423342321 is a wasteful number, since it uses less digits than its factorization.

522251423342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102113523.

The product of its digits is 691200, while the sum is 41.

Adding to 522251423342321 its reverse (123243324152225), we get a palindrome (645494747494546).

The spelling of 522251423342321 in words is "five hundred twenty-two trillion, two hundred fifty-one billion, four hundred twenty-three million, three hundred forty-two thousand, three hundred twenty-one".