50656457808 has 200 divisors, whose sum is σ = 160138652256. Its totient is φ = 15331680000.

The previous prime is 50656457791. The next prime is 50656457857. The reversal of 50656457808 is 80875465605.

50656457808 is a `hidden beast` number, since 5 + 0 + 6 + 5 + 64 + 578 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15580183 + ... + 15583433.

Almost surely, 2^50656457808 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 50656457808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80069326128).

50656457808 is an abundant number, since it is smaller than the sum of its proper divisors (109482194448).

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

50656457808 is a wasteful number, since it uses less digits than its factorization.

50656457808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4375 (or 4360 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 54.

The spelling of 50656457808 in words is "fifty billion, six hundred fifty-six million, four hundred fifty-seven thousand, eight hundred eight".