55022345220 has 96 divisors (see below), whose sum is σ = 158050279296. Its totient is φ = 14293888000.

The previous prime is 55022345219. The next prime is 55022345237. The reversal of 55022345220 is 2254322055.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1708507 + ... + 1740413.

It is an arithmetic number, because the mean of its divisors is an integer number (1646357076).

Almost surely, 2^55022345220 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 55022345220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79025139648).

55022345220 is an abundant number, since it is smaller than the sum of its proper divisors (103027934076).

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

55022345220 is a wasteful number, since it uses less digits than its factorization.

55022345220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32661 (or 32659 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 55022345220 its reverse (2254322055), we get a palindrome (57276667275).

The spelling of 55022345220 in words is "fifty-five billion, twenty-two million, three hundred forty-five thousand, two hundred twenty".