51043328 has 44 divisors (see below), whose sum is σ = 116629872. Its totient is φ = 21872640.

The previous prime is 51043327. The next prime is 51043337. The reversal of 51043328 is 82334015.

It is a junction number, because it is equal to n+sod(n) for n = 51043297 and 51043306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51043327) 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, 3608 + ... + 10728.

Almost surely, 2^51043328 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 51043328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58314936).

51043328 is an abundant number, since it is smaller than the sum of its proper divisors (65586544).

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

51043328 is an equidigital number, since it uses as much as digits as its factorization.

51043328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7148 (or 7130 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 51043328 is about 7144.4613512846. The cubic root of 51043328 is about 370.9479660534.

The spelling of 51043328 in words is "fifty-one million, forty-three thousand, three hundred twenty-eight".