55503604000 has 384 divisors, whose sum is σ = 151571347200. Its totient is φ = 19849420800.

The previous prime is 55503603973. The next prime is 55503604003. The reversal of 55503604000 is 40630555.

It is a self number, because there is not a number n which added to its sum of digits gives 55503604000.

It is not an unprimeable number, because it can be changed into a prime (55503604003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 310075911 + ... + 310076089.

It is an arithmetic number, because the mean of its divisors is an integer number (394717050).

Almost surely, 2^55503604000 is an apocalyptic number.

55503604000 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 55503604000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75785673600).

55503604000 is an abundant number, since it is smaller than the sum of its proper divisors (96067743200).

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

55503604000 is a wasteful number, since it uses less digits than its factorization.

55503604000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 55503604000 in words is "fifty-five billion, five hundred three million, six hundred four thousand".