55022123320000 has 140 divisors (see below), whose sum is σ = 136468449429840. Its totient is φ = 22003773568000.

The previous prime is 55022123319983. The next prime is 55022123320027. The reversal of 55022123320000 is 2332122055.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 175723581 + ... + 176036419.

Almost surely, 2^{55022123320000} is an apocalyptic number.

55022123320000 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 55022123320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68234224714920).

55022123320000 is an abundant number, since it is smaller than the sum of its proper divisors (81446326109840).

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

55022123320000 is an equidigital number, since it uses as much as digits as its factorization.

55022123320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317268 (or 317243 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 55022123320000 its reverse (2332122055), we get a palindrome (55024455442055).

The spelling of 55022123320000 in words is "fifty-five trillion, twenty-two billion, one hundred twenty-three million, three hundred twenty thousand".