522230525440 has 160 divisors (see below), whose sum is σ = 1354109581440. Its totient is φ = 192013860864.

The previous prime is 522230525419. The next prime is 522230525447. The reversal of 522230525440 is 44525032225.

It is a tau number, because it is divible by the number of its divisors (160).

It is a junction number, because it is equal to n+sod(n) for n = 522230525396 and 522230525405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522230525447) 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, 7921092 + ... + 7986748.

It is an arithmetic number, because the mean of its divisors is an integer number (8463184884).

Almost surely, 2^522230525440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522230525440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (677054790720).

522230525440 is an abundant number, since it is smaller than the sum of its proper divisors (831879056000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

522230525440 is a wasteful number, since it uses less digits than its factorization.

522230525440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65932 (or 65916 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 522230525440 its reverse (44525032225), we get a palindrome (566755557665).

The spelling of 522230525440 in words is "five hundred twenty-two billion, two hundred thirty million, five hundred twenty-five thousand, four hundred forty".