522856750000 has 140 divisors (see below), whose sum is σ = 1363691919520. Its totient is φ = 193053600000.

The previous prime is 522856749997. The next prime is 522856750001. The reversal of 522856750000 is 57658225.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (522856750001) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3169561 + ... + 3330439.

It is an arithmetic number, because the mean of its divisors is an integer number (9740656568).

Almost surely, 2^522856750000 is an apocalyptic number.

522856750000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522856750000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681845959760).

522856750000 is an abundant number, since it is smaller than the sum of its proper divisors (840835169520).

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

522856750000 is an equidigital number, since it uses as much as digits as its factorization.

522856750000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160930 (or 160899 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 522856750000 in words is "five hundred twenty-two billion, eight hundred fifty-six million, seven hundred fifty thousand".