50055005550 has 96 divisors (see below), whose sum is σ = 136003795200. Its totient is φ = 12082374400.

The previous prime is 50055005531. The next prime is 50055005557. The reversal of 50055005550 is 5550055005.

It is a super-2 number, since 2×50055005550² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50055005557) 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 47 ways as a sum of consecutive naturals, for example, 319351 + ... + 449549.

It is an arithmetic number, because the mean of its divisors is an integer number (1416706200).

Almost surely, 2^50055005550 is an apocalyptic number.

50055005550 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 50055005550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68001897600).

50055005550 is an abundant number, since it is smaller than the sum of its proper divisors (85948789650).

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

50055005550 is a wasteful number, since it uses less digits than its factorization.

50055005550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130458 (or 130453 counting only the distinct ones).

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

The spelling of 50055005550 in words is "fifty billion, fifty-five million, five thousand, five hundred fifty".