51285116 has 12 divisors (see below), whose sum is σ = 89833800. Its totient is φ = 25618320.

The previous prime is 51285109. The next prime is 51285139. The reversal of 51285116 is 61158215.

51285116 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 791 + ... + 10158.

It is an arithmetic number, because the mean of its divisors is an integer number (7486150).

Almost surely, 2^51285116 is an apocalyptic number.

It is an amenable number.

51285116 is a deficient number, since it is larger than the sum of its proper divisors (38548684).

51285116 is a wasteful number, since it uses less digits than its factorization.

51285116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12124 (or 12122 counting only the distinct ones).

The product of its digits is 2400, while the sum is 29.

The square root of 51285116 is about 7161.3627194829. The cubic root of 51285116 is about 371.5327602051.

The spelling of 51285116 in words is "fifty-one million, two hundred eighty-five thousand, one hundred sixteen".