50511300000 has 576 divisors, whose sum is σ = 192767662080. Its totient is φ = 11341440000.

The previous prime is 50511299959. The next prime is 50511300001. The reversal of 50511300000 is 311505.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50511300001) 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, 140699821 + ... + 140700179.

It is an arithmetic number, because the mean of its divisors is an integer number (334666080).

Almost surely, 2^50511300000 is an apocalyptic number.

50511300000 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 50511300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96383831040).

50511300000 is an abundant number, since it is smaller than the sum of its proper divisors (142256362080).

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

50511300000 is an equidigital number, since it uses as much as digits as its factorization.

50511300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 15.

Adding to 50511300000 its reverse (311505), we get a palindrome (50511611505).

The spelling of 50511300000 in words is "fifty billion, five hundred eleven million, three hundred thousand".