51686102 has 16 divisors (see below), whose sum is σ = 83925072. Its totient is φ = 23731680.

The previous prime is 51686081. The next prime is 51686111. The reversal of 51686102 is 20168615.

It is a happy number.

51686102 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 7 ways as a sum of consecutive naturals, for example, 77 + ... + 10167.

It is an arithmetic number, because the mean of its divisors is an integer number (5245317).

Almost surely, 2^51686102 is an apocalyptic number.

51686102 is a deficient number, since it is larger than the sum of its proper divisors (32238970).

51686102 is a wasteful number, since it uses less digits than its factorization.

51686102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10303.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 51686102 is about 7189.3046951705. The cubic root of 51686102 is about 372.4985559153.

The spelling of 51686102 in words is "fifty-one million, six hundred eighty-six thousand, one hundred two".