50555000000 has 112 divisors (see below), whose sum is σ = 125412178944. Its totient is φ = 20220000000.

The previous prime is 50554999997. The next prime is 50555000003. The reversal of 50555000000 is 55505.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (50554999997) and next prime (50555000003).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (50555000003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4994945 + ... + 5005055.

Almost surely, 2^50555000000 is an apocalyptic number.

50555000000 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 50555000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62706089472).

50555000000 is an abundant number, since it is smaller than the sum of its proper divisors (74857178944).

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

50555000000 is an frugal number, since it uses more digits than its factorization.

50555000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10158 (or 10118 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 20.

Adding to 50555000000 its reverse (55505), we get a palindrome (50555055505).

The spelling of 50555000000 in words is "fifty billion, five hundred fifty-five million", and thus it is an aban number.