50856776550 has 288 divisors, whose sum is σ = 149444006400. Its totient is φ = 12350257920.

The previous prime is 50856776543. The next prime is 50856776557. The reversal of 50856776550 is 5567765805.

50856776550 is a `hidden beast` number, since 5 + 0 + 8 + 567 + 76 + 5 + 5 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (50856776543) and next prime (50856776557).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50856776557) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 109841619 + ... + 109842081.

It is an arithmetic number, because the mean of its divisors is an integer number (518902800).

Almost surely, 2^50856776550 is an apocalyptic number.

50856776550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 50856776550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74722003200).

50856776550 is an abundant number, since it is smaller than the sum of its proper divisors (98587229850).

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

50856776550 is a wasteful number, since it uses less digits than its factorization.

50856776550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 8820000, while the sum is 54.

The spelling of 50856776550 in words is "fifty billion, eight hundred fifty-six million, seven hundred seventy-six thousand, five hundred fifty".