51256044 has 96 divisors (see below), whose sum is σ = 153216000. Its totient is φ = 14515200.

The previous prime is 51256033. The next prime is 51256081. The reversal of 51256044 is 44065215.

51256044 is a `hidden beast` number, since 51 + 2 + 5 + 604 + 4 = 666.

51256044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 51255999 and 51256017.

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 31 ways as a sum of consecutive naturals, for example, 113932 + ... + 114380.

It is an arithmetic number, because the mean of its divisors is an integer number (1596000).

Almost surely, 2^51256044 is an apocalyptic number.

51256044 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51256044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76608000).

51256044 is an abundant number, since it is smaller than the sum of its proper divisors (101959956).

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

51256044 is a wasteful number, since it uses less digits than its factorization.

51256044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 51256044 is about 7159.3326504640. The cubic root of 51256044 is about 371.4625433284.

The spelling of 51256044 in words is "fifty-one million, two hundred fifty-six thousand, forty-four".