50781830 has 16 divisors (see below), whose sum is σ = 99717264. Its totient is φ = 18466080.

The previous prime is 50781823. The next prime is 50781847. The reversal of 50781830 is 3818705.

50781830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230717 + ... + 230936.

It is an arithmetic number, because the mean of its divisors is an integer number (6232329).

Almost surely, 2^50781830 is an apocalyptic number.

50781830 is a deficient number, since it is larger than the sum of its proper divisors (48935434).

50781830 is a wasteful number, since it uses less digits than its factorization.

50781830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461671.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 50781830 is about 7126.1371022455. The cubic root of 50781830 is about 370.3134183898.

The spelling of 50781830 in words is "fifty million, seven hundred eighty-one thousand, eight hundred thirty".