522551514223020 has 48 divisors (see below), whose sum is σ = 1549211548052448. Its totient is φ = 131150183961600.

The previous prime is 522551514223001. The next prime is 522551514223027. The reversal of 522551514223020 is 20322415155225.

It is a self number, because there is not a number n which added to its sum of digits gives 522551514223020.

It is not an unprimeable number, because it can be changed into a prime (522551514223027) 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, 256152702031 + ... + 256152704070.

It is an arithmetic number, because the mean of its divisors is an integer number (32275240584426).

Almost surely, 2^{522551514223020} is an apocalyptic number.

It is an amenable number.

522551514223020 is an abundant number, since it is smaller than the sum of its proper divisors (1026660033829428).

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

522551514223020 is a wasteful number, since it uses less digits than its factorization.

522551514223020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512305406130 (or 512305406128 counting only the distinct ones).

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

Adding to 522551514223020 its reverse (20322415155225), we get a palindrome (542873929378245).

The spelling of 522551514223020 in words is "five hundred twenty-two trillion, five hundred fifty-one billion, five hundred fourteen million, two hundred twenty-three thousand, twenty".