51843072 has 52 divisors (see below), whose sum is σ = 138264080. Its totient is φ = 17276928.

The previous prime is 51843049. The next prime is 51843073. The reversal of 51843072 is 27034815.

It is a super-2 number, since 2×51843072² = 5375408228794368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51843073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10179 + ... + 14397.

Almost surely, 2^51843072 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 51843072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69132040).

51843072 is an abundant number, since it is smaller than the sum of its proper divisors (86421008).

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

51843072 is an equidigital number, since it uses as much as digits as its factorization.

51843072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4246 (or 4224 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 51843072 is about 7200.2133301729. The cubic root of 51843072 is about 372.8752658608.

Adding to 51843072 its reverse (27034815), we get a palindrome (78877887).

It can be divided in two parts, 5184 and 3072, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 51843072 in words is "fifty-one million, eight hundred forty-three thousand, seventy-two".