50131049850 has 360 divisors, whose sum is σ = 163164673980. Its totient is φ = 11378465280.

The previous prime is 50131049827. The next prime is 50131049863. The reversal of 50131049850 is 5894013105.

50131049850 is a `hidden beast` number, since 501 + 3 + 10 + 4 + 98 + 50 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 28528223409 + 21602826441 = 168903^2 + 146979^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 31155846 + ... + 31157454.

Almost surely, 2^50131049850 is an apocalyptic number.

50131049850 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 50131049850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81582336990).

50131049850 is an abundant number, since it is smaller than the sum of its proper divisors (113033624130).

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

50131049850 is a wasteful number, since it uses less digits than its factorization.

50131049850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804 (or 1783 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The spelling of 50131049850 in words is "fifty billion, one hundred thirty-one million, forty-nine thousand, eight hundred fifty".