55223606551872 has 224 divisors, whose sum is σ = 160522314301440. Its totient is φ = 16616502650880.

The previous prime is 55223606551847. The next prime is 55223606551879. The reversal of 55223606551872 is 27815560632255.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55223606551879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183058953 + ... + 183360375.

It is an arithmetic number, because the mean of its divisors is an integer number (716617474560).

Almost surely, 2^{55223606551872} 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 55223606551872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80261157150720).

55223606551872 is an abundant number, since it is smaller than the sum of its proper divisors (105298707749568).

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

55223606551872 is a wasteful number, since it uses less digits than its factorization.

55223606551872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302061 (or 302051 counting only the distinct ones).

The product of its (nonzero) digits is 30240000, while the sum is 57.

The spelling of 55223606551872 in words is "fifty-five trillion, two hundred twenty-three billion, six hundred six million, five hundred fifty-one thousand, eight hundred seventy-two".