50850811557 has 192 divisors, whose sum is σ = 99565240320. Its totient is φ = 25184162304.

The previous prime is 50850811493. The next prime is 50850811589. The reversal of 50850811557 is 75511805805.

50850811557 is a `hidden beast` number, since 5 + 0 + 85 + 0 + 8 + 11 + 557 = 666.

It is not a de Polignac number, because 50850811557 - 2⁶ = 50850811493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50850811597) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 53358193 + ... + 53359145.

It is an arithmetic number, because the mean of its divisors is an integer number (518568960).

Almost surely, 2^50850811557 is an apocalyptic number.

50850811557 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

50850811557 is a deficient number, since it is larger than the sum of its proper divisors (48714428763).

50850811557 is a wasteful number, since it uses less digits than its factorization.

50850811557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 280000, while the sum is 45.

The spelling of 50850811557 in words is "fifty billion, eight hundred fifty million, eight hundred eleven thousand, five hundred fifty-seven".