55555050050000 has 120 divisors (see below), whose sum is σ = 134890098481152. Its totient is φ = 22163991440000.

The previous prime is 55555050049943. The next prime is 55555050050009. The reversal of 55555050050000 is 5005055555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555050050009) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 17699477 + ... + 20600523.

Almost surely, 2^{55555050050000} is an apocalyptic number.

55555050050000 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 55555050050000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67445049240576).

55555050050000 is an abundant number, since it is smaller than the sum of its proper divisors (79335048431152).

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

55555050050000 is an equidigital number, since it uses as much as digits as its factorization.

55555050050000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901463 (or 2901437 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 55555050050000 in words is "fifty-five trillion, five hundred fifty-five billion, fifty million, fifty thousand".