50515005540 has 96 divisors (see below), whose sum is σ = 146018678400. Its totient is φ = 13038575616.

The previous prime is 50515005491. The next prime is 50515005559. The reversal of 50515005540 is 4550051505.

50515005540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 50515005498 and 50515005507.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369511 + ... + 487409.

It is an arithmetic number, because the mean of its divisors is an integer number (1521027900).

Almost surely, 2^50515005540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50515005540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73009339200).

50515005540 is an abundant number, since it is smaller than the sum of its proper divisors (95503672860).

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

50515005540 is a wasteful number, since it uses less digits than its factorization.

50515005540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118141 (or 118139 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 30.

The spelling of 50515005540 in words is "fifty billion, five hundred fifteen million, five thousand, five hundred forty".