55622204928 has 200 divisors, whose sum is σ = 173238764688. Its totient is φ = 17734311936.

The previous prime is 55622204909. The next prime is 55622204933. The reversal of 55622204928 is 82940222655.

It is a happy number.

55622204928 is a `hidden beast` number, since 5 + 562 + 2 + 20 + 49 + 28 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 924700 + ... + 983012.

Almost surely, 2^55622204928 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 55622204928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86619382344).

55622204928 is an abundant number, since it is smaller than the sum of its proper divisors (117616559760).

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

55622204928 is an equidigital number, since it uses as much as digits as its factorization.

55622204928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58366 (or 58341 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 55622204928 in words is "fifty-five billion, six hundred twenty-two million, two hundred four thousand, nine hundred twenty-eight".