50221335540 has 48 divisors (see below), whose sum is σ = 140635555200. Its totient is φ = 13390849920.

The previous prime is 50221335533. The next prime is 50221335551. The reversal of 50221335540 is 4553312205.

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 = 50221335498 and 50221335507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 554361 + ... + 638559.

It is an arithmetic number, because the mean of its divisors is an integer number (2929907400).

Almost surely, 2^50221335540 is an apocalyptic number.

It is an amenable number.

50221335540 is an abundant number, since it is smaller than the sum of its proper divisors (90414219660).

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

50221335540 is a wasteful number, since it uses less digits than its factorization.

50221335540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94152 (or 94150 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 50221335540 its reverse (4553312205), we get a palindrome (54774647745).

The spelling of 50221335540 in words is "fifty billion, two hundred twenty-one million, three hundred thirty-five thousand, five hundred forty".