53781850 has 24 divisors (see below), whose sum is σ = 100663200. Its totient is φ = 21377520.

The previous prime is 53781841. The next prime is 53781853. The reversal of 53781850 is 5818735.

53781850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (53781853) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4851 + ... + 11449.

It is an arithmetic number, because the mean of its divisors is an integer number (4194300).

Almost surely, 2^53781850 is an apocalyptic number.

53781850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53781850 is a deficient number, since it is larger than the sum of its proper divisors (46881350).

53781850 is a wasteful number, since it uses less digits than its factorization.

53781850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6774 (or 6769 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 53781850 is about 7333.6109795925. The cubic root of 53781850 is about 377.4666432523.

The spelling of 53781850 in words is "fifty-three million, seven hundred eighty-one thousand, eight hundred fifty".