50550000005500 has 96 divisors (see below), whose sum is σ = 111924843226560. Its totient is φ = 19941000422400.

The previous prime is 50550000005443. The next prime is 50550000005521. The reversal of 50550000005500 is 550000005505.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 391543959 + ... + 391673041.

It is an arithmetic number, because the mean of its divisors is an integer number (1165883783610).

Almost surely, 2^{50550000005500} is an apocalyptic number.

50550000005500 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 50550000005500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55962421613280).

50550000005500 is an abundant number, since it is smaller than the sum of its proper divisors (61374843221060).

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

50550000005500 is a wasteful number, since it uses less digits than its factorization.

50550000005500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139904 (or 139892 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

The spelling of 50550000005500 in words is "fifty trillion, five hundred fifty billion, five thousand, five hundred".