522553450420 has 96 divisors (see below), whose sum is σ = 1227423093120. Its totient is φ = 185708113920.

The previous prime is 522553450373. The next prime is 522553450453. The reversal of 522553450420 is 24054355225.

It is a self number, because there is not a number n which added to its sum of digits gives 522553450420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1671327 + ... + 1959193.

It is an arithmetic number, because the mean of its divisors is an integer number (12785657220).

Almost surely, 2^522553450420 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 522553450420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613711546560).

522553450420 is an abundant number, since it is smaller than the sum of its proper divisors (704869642700).

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

522553450420 is a wasteful number, since it uses less digits than its factorization.

522553450420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288193 (or 288191 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 37.

The spelling of 522553450420 in words is "five hundred twenty-two billion, five hundred fifty-three million, four hundred fifty thousand, four hundred twenty".