522530425416221 has 8 divisors (see below), whose sum is σ = 553267711147320. Its totient is φ = 491793162116608.

The previous prime is 522530425416169. The next prime is 522530425416247. The reversal of 522530425416221 is 122614524035225.

It can be written as a sum of positive squares in 4 ways, for example, as 348536228265625 + 173994197150596 = 18669125^2 + 13190686^2 .

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 522530425416221 - 2²⁶ = 522530358307357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522530425416271) 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, 77773145 + ... + 84224241.

It is an arithmetic number, because the mean of its divisors is an integer number (69158463893415).

Almost surely, 2^{522530425416221} is an apocalyptic number.

It is an amenable number.

522530425416221 is a deficient number, since it is larger than the sum of its proper divisors (30737285731099).

522530425416221 is a wasteful number, since it uses less digits than its factorization.

522530425416221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11215743.

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 522530425416221 in words is "five hundred twenty-two trillion, five hundred thirty billion, four hundred twenty-five million, four hundred sixteen thousand, two hundred twenty-one".