51785528 has 16 divisors (see below), whose sum is σ = 98060760. Its totient is φ = 25636000.

The previous prime is 51785521. The next prime is 51785549. The reversal of 51785528 is 82558715.

51785528 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 (51785521) 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, 31238 + ... + 32853.

Almost surely, 2^51785528 is an apocalyptic number.

It is an amenable number.

51785528 is a deficient number, since it is larger than the sum of its proper divisors (46275232).

51785528 is a wasteful number, since it uses less digits than its factorization.

51785528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64198 (or 64194 counting only the distinct ones).

The product of its digits is 112000, while the sum is 41.

The square root of 51785528 is about 7196.2162279909. The cubic root of 51785528 is about 372.7372552768.

The spelling of 51785528 in words is "fifty-one million, seven hundred eighty-five thousand, five hundred twenty-eight".