51872744 has 64 divisors (see below), whose sum is σ = 122549760. Its totient is φ = 19995840.

The previous prime is 51872731. The next prime is 51872767. The reversal of 51872744 is 44727815.

51872744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51872698 and 51872707.

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, 65519 + ... + 66305.

It is an arithmetic number, because the mean of its divisors is an integer number (1914840).

Almost surely, 2^51872744 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 51872744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61274880).

51872744 is an abundant number, since it is smaller than the sum of its proper divisors (70677016).

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

51872744 is a wasteful number, since it uses less digits than its factorization.

51872744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918 (or 914 counting only the distinct ones).

The product of its digits is 62720, while the sum is 38.

The square root of 51872744 is about 7202.2735299348. The cubic root of 51872744 is about 372.9463897632.

Subtracting from 51872744 its reverse (44727815), we obtain a square (7144929 = 2673²).

The spelling of 51872744 in words is "fifty-one million, eight hundred seventy-two thousand, seven hundred forty-four".