51104160 has 144 divisors (see below), whose sum is σ = 182093184. Its totient is φ = 13026816.

The previous prime is 51104149. The next prime is 51104191. The reversal of 51104160 is 6140115.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×51104160² = 5223270338611200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 32349 + ... + 33891.

It is an arithmetic number, because the mean of its divisors is an integer number (1264536).

Almost surely, 2^51104160 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 51104160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91046592).

51104160 is an abundant number, since it is smaller than the sum of its proper divisors (130989024).

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

51104160 is a wasteful number, since it uses less digits than its factorization.

51104160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 51104160 is about 7148.7173674723. The cubic root of 51104160 is about 371.0952693293.

Adding to 51104160 its reverse (6140115), we get a palindrome (57244275).

The spelling of 51104160 in words is "fifty-one million, one hundred four thousand, one hundred sixty".