55203552000 has 576 divisors, whose sum is σ = 205437697920. Its totient is φ = 14598144000.

The previous prime is 55203551989. The next prime is 55203552013. The reversal of 55203552000 is 25530255.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 156383824 + ... + 156384176.

It is an arithmetic number, because the mean of its divisors is an integer number (356662670).

Almost surely, 2^55203552000 is an apocalyptic number.

55203552000 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 55203552000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102718848960).

55203552000 is an abundant number, since it is smaller than the sum of its proper divisors (150234145920).

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

55203552000 is a wasteful number, since it uses less digits than its factorization.

55203552000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The spelling of 55203552000 in words is "fifty-five billion, two hundred three million, five hundred fifty-two thousand".