51108 has 12 divisors (see below), whose sum is σ = 119280. Its totient is φ = 17032.

The previous prime is 51071. The next prime is 51109. The reversal of 51108 is 80115.

It is a happy number.

51108 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×51108² = 5224055328, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 51108.

It is not an unprimeable number, because it can be changed into a prime (51109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2118 + ... + 2141.

It is an arithmetic number, because the mean of its divisors is an integer number (9940).

2⁵¹¹⁰⁸ is an apocalyptic number.

It is an amenable number.

51108 is an abundant number, since it is smaller than the sum of its proper divisors (68172).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59640).

51108 is a wasteful number, since it uses less digits than its factorization.

51108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266 (or 4264 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 51108 is about 226.0707853748. The cubic root of 51108 is about 37.1104563877.

The spelling of 51108 in words is "fifty-one thousand, one hundred eight".