51350244 has 48 divisors (see below), whose sum is σ = 132525120. Its totient is φ = 15347520.

The previous prime is 51350239. The next prime is 51350287. The reversal of 51350244 is 44205315.

51350244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703392 + ... + 703464.

It is an arithmetic number, because the mean of its divisors is an integer number (2760940).

Almost surely, 2^51350244 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 51350244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66262560).

51350244 is an abundant number, since it is smaller than the sum of its proper divisors (81174876).

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

51350244 is an equidigital number, since it uses as much as digits as its factorization.

51350244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 51350244 is about 7165.9084560159. The cubic root of 51350244 is about 371.6899659851.

Adding to 51350244 its reverse (44205315), we get a palindrome (95555559).

Subtracting from 51350244 its reverse (44205315), we obtain a square (7144929 = 2673²).

The spelling of 51350244 in words is "fifty-one million, three hundred fifty thousand, two hundred forty-four".