50532553728 has 308 divisors, whose sum is σ = 152857186720. Its totient is φ = 16688664576.

The previous prime is 50532553727. The next prime is 50532553777. The reversal of 50532553728 is 82735523505.

It is a happy number.

50532553728 is a `hidden beast` number, since 505 + 3 + 25 + 53 + 72 + 8 = 666.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50532553723) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 103762701 + ... + 103763187.

Almost surely, 2^50532553728 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 50532553728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76428593360).

50532553728 is an abundant number, since it is smaller than the sum of its proper divisors (102324632992).

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

50532553728 is an equidigital number, since it uses as much as digits as its factorization.

50532553728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 50532553728 in words is "fifty billion, five hundred thirty-two million, five hundred fifty-three thousand, seven hundred twenty-eight".