51555256 has 16 divisors (see below), whose sum is σ = 97554600. Its totient is φ = 25540704.

The previous prime is 51555253. The next prime is 51555289. The reversal of 51555256 is 65255515.

51555256 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 not an unprimeable number, because it can be changed into a prime (51555253) by changing a digit.

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, 28690 + ... + 30433.

Almost surely, 2^51555256 is an apocalyptic number.

It is an amenable number.

51555256 is a deficient number, since it is larger than the sum of its proper divisors (45999344).

51555256 is a wasteful number, since it uses less digits than its factorization.

51555256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59238 (or 59234 counting only the distinct ones).

The product of its digits is 37500, while the sum is 34.

The square root of 51555256 is about 7180.1988830394. The cubic root of 51555256 is about 372.1839572687.

The spelling of 51555256 in words is "fifty-one million, five hundred fifty-five thousand, two hundred fifty-six".