51256056 has 16 divisors (see below), whose sum is σ = 128140200. Its totient is φ = 17085344.

The previous prime is 51256033. The next prime is 51256081. The reversal of 51256056 is 65065215.

51256056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1067811 + ... + 1067858.

Almost surely, 2^51256056 is an apocalyptic number.

It is an amenable number.

51256056 is an abundant number, since it is smaller than the sum of its proper divisors (76884144).

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

51256056 is a wasteful number, since it uses less digits than its factorization.

51256056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135678 (or 2135674 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 51256056 is about 7159.3334885309. Note that the first 3 decimals coincide. The cubic root of 51256056 is about 371.4625723171.

The spelling of 51256056 in words is "fifty-one million, two hundred fifty-six thousand, fifty-six".