50446221240 has 128 divisors (see below), whose sum is σ = 155144808000. Its totient is φ = 13114490880.

The previous prime is 50446221193. The next prime is 50446221257. The reversal of 50446221240 is 4212264405.

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 = 50446221198 and 50446221207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8621836 + ... + 8627684.

Almost surely, 2^50446221240 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 50446221240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77572404000).

50446221240 is an abundant number, since it is smaller than the sum of its proper divisors (104698586760).

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

50446221240 is a wasteful number, since it uses less digits than its factorization.

50446221240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7657 (or 7653 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 50446221240 its reverse (4212264405), we get a palindrome (54658485645).

The spelling of 50446221240 in words is "fifty billion, four hundred forty-six million, two hundred twenty-one thousand, two hundred forty".