55000500505050 has 192 divisors, whose sum is σ = 140918075844480. Its totient is φ = 14185872506880.

The previous prime is 55000500505039. The next prime is 55000500505051. The reversal of 55000500505050 is 5050500500055.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 55000500504999 and 55000500505017.

It is not an unprimeable number, because it can be changed into a prime (55000500505051) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3648934314 + ... + 3648949386.

It is an arithmetic number, because the mean of its divisors is an integer number (733948311690).

Almost surely, 2^{55000500505050} is an apocalyptic number.

55000500505050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55000500505050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70459037922240).

55000500505050 is an abundant number, since it is smaller than the sum of its proper divisors (85917575339430).

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

55000500505050 is a wasteful number, since it uses less digits than its factorization.

55000500505050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18977 (or 18972 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 30.

The spelling of 55000500505050 in words is "fifty-five trillion, five hundred million, five hundred five thousand, fifty".