51843942 has 32 divisors (see below), whose sum is σ = 116054400. Its totient is φ = 17154504.

The previous prime is 51843941. The next prime is 51843959. The reversal of 51843942 is 24934815.

51843942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51843897 and 51843906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51843941) 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 15 ways as a sum of consecutive naturals, for example, 4053 + ... + 10959.

It is an arithmetic number, because the mean of its divisors is an integer number (3626700).

Almost surely, 2^51843942 is an apocalyptic number.

51843942 is an abundant number, since it is smaller than the sum of its proper divisors (64210458).

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

51843942 is a wasteful number, since it uses less digits than its factorization.

51843942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7057 (or 7051 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 51843942 is about 7200.2737447961. The cubic root of 51843942 is about 372.8773516405.

The spelling of 51843942 in words is "fifty-one million, eight hundred forty-three thousand, nine hundred forty-two".