51210842 has 16 divisors (see below), whose sum is σ = 78825312. Its totient is φ = 24943920.

The previous prime is 51210827. The next prime is 51210883. The reversal of 51210842 is 24801215.

51210842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 11093 + ... + 15015.

It is an arithmetic number, because the mean of its divisors is an integer number (4926582).

Almost surely, 2^51210842 is an apocalyptic number.

51210842 is a deficient number, since it is larger than the sum of its proper divisors (27614470).

51210842 is a wasteful number, since it uses less digits than its factorization.

51210842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 51210842 is about 7156.1750956779. The cubic root of 51210842 is about 371.3533153111.

The spelling of 51210842 in words is "fifty-one million, two hundred ten thousand, eight hundred forty-two".