51866528 has 24 divisors (see below), whose sum is σ = 116700192. Its totient is φ = 22228416.

The previous prime is 51866527. The next prime is 51866569. The reversal of 51866528 is 82566815.

51866528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51866527) 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, 115550 + ... + 115997.

It is an arithmetic number, because the mean of its divisors is an integer number (4862508).

Almost surely, 2^51866528 is an apocalyptic number.

It is an amenable number.

51866528 is an abundant number, since it is smaller than the sum of its proper divisors (64833664).

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

51866528 is a wasteful number, since it uses less digits than its factorization.

51866528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231564 (or 231556 counting only the distinct ones).

The product of its digits is 115200, while the sum is 41.

The square root of 51866528 is about 7201.8419866031. The cubic root of 51866528 is about 372.9314922326.

The spelling of 51866528 in words is "fifty-one million, eight hundred sixty-six thousand, five hundred twenty-eight".