50520637440 has 960 divisors, whose sum is σ = 221955793920. Its totient is φ = 10616832000.

The previous prime is 50520637399. The next prime is 50520637477. The reversal of 50520637440 is 4473602505.

50520637440 is a `hidden beast` number, since 5 + 0 + 5 + 206 + 3 + 7 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 50520637395 and 50520637404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 201277315 + ... + 201277565.

It is an arithmetic number, because the mean of its divisors is an integer number (231203952).

Almost surely, 2^50520637440 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 50520637440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110977896960).

50520637440 is an abundant number, since it is smaller than the sum of its proper divisors (171435156480).

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

50520637440 is a wasteful number, since it uses less digits than its factorization.

50520637440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The spelling of 50520637440 in words is "fifty billion, five hundred twenty million, six hundred thirty-seven thousand, four hundred forty".