55524388920 has 1152 divisors, whose sum is σ = 238647928320. Its totient is φ = 10027929600.

The previous prime is 55524388853. The next prime is 55524388981. The reversal of 55524388920 is 2988342555.

It is a congruent number.

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 287 ways as a sum of consecutive naturals, for example, 1500659142 + ... + 1500659178.

It is an arithmetic number, because the mean of its divisors is an integer number (207159660).

Almost surely, 2^55524388920 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 55524388920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119323964160).

55524388920 is an abundant number, since it is smaller than the sum of its proper divisors (183123539400).

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

55524388920 is a wasteful number, since it uses less digits than its factorization.

55524388920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 51.

It can be divided in two parts, 55524 and 388920, that added together give a palindrome (444444).

The spelling of 55524388920 in words is "fifty-five billion, five hundred twenty-four million, three hundred eighty-eight thousand, nine hundred twenty".