50781827656 has 32 divisors (see below), whose sum is σ = 108841904640. Its totient is φ = 21758899968.

The previous prime is 50781827653. The next prime is 50781827669. The reversal of 50781827656 is 65672818705.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 50781827597 and 50781827606.

It is not an unprimeable number, because it can be changed into a prime (50781827653) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 166960 + ... + 359776.

It is an arithmetic number, because the mean of its divisors is an integer number (3401309520).

Almost surely, 2^50781827656 is an apocalyptic number.

50781827656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

50781827656 is an abundant number, since it is smaller than the sum of its proper divisors (58060076984).

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

50781827656 is a wasteful number, since it uses less digits than its factorization.

50781827656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197533 (or 197529 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 55.

The spelling of 50781827656 in words is "fifty billion, seven hundred eighty-one million, eight hundred twenty-seven thousand, six hundred fifty-six".