51818112 has 96 divisors (see below), whose sum is σ = 154028160. Its totient is φ = 16704000.

The previous prime is 51818087. The next prime is 51818141. The reversal of 51818112 is 21181815.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34987 + ... + 36437.

It is an arithmetic number, because the mean of its divisors is an integer number (1604460).

Almost surely, 2^51818112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51818112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77014080).

51818112 is an abundant number, since it is smaller than the sum of its proper divisors (102210048).

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

51818112 is a wasteful number, since it uses less digits than its factorization.

51818112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 1487 counting only the distinct ones).

The product of its digits is 640, while the sum is 27.

The square root of 51818112 is about 7198.4798395217. The cubic root of 51818112 is about 372.8154156224.

Adding to 51818112 its reverse (21181815), we get a palindrome (72999927).

The spelling of 51818112 in words is "fifty-one million, eight hundred eighteen thousand, one hundred twelve".