51322533700000 has 144 divisors (see below), whose sum is σ = 126329594388480. Its totient is φ = 20523140640000.

The previous prime is 51322533699973. The next prime is 51322533700021. The reversal of 51322533700000 is 733522315.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358228381 + ... + 358371619.

It is an arithmetic number, because the mean of its divisors is an integer number (877288849920).

Almost surely, 2^{51322533700000} is an apocalyptic number.

51322533700000 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 51322533700000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63164797194240).

51322533700000 is an abundant number, since it is smaller than the sum of its proper divisors (75007060688480).

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

51322533700000 is an equidigital number, since it uses as much as digits as its factorization.

51322533700000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146857 (or 146829 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 31.

The spelling of 51322533700000 in words is "fifty-one trillion, three hundred twenty-two billion, five hundred thirty-three million, seven hundred thousand".