50531215240 has 128 divisors (see below), whose sum is σ = 127583838720. Its totient is φ = 17850240000.

The previous prime is 50531215237. The next prime is 50531215373. The reversal of 50531215240 is 4251213505.

50531215240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 50531215199 and 50531215208.

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, 12224214 + ... + 12228346.

It is an arithmetic number, because the mean of its divisors is an integer number (996748740).

Almost surely, 2^50531215240 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 50531215240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63791919360).

50531215240 is an abundant number, since it is smaller than the sum of its proper divisors (77052623480).

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

50531215240 is a wasteful number, since it uses less digits than its factorization.

50531215240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943 (or 4939 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 50531215240 its reverse (4251213505), we get a palindrome (54782428745).

The spelling of 50531215240 in words is "fifty billion, five hundred thirty-one million, two hundred fifteen thousand, two hundred forty".