51865288 has 16 divisors (see below), whose sum is σ = 102366000. Its totient is φ = 24567696.

The previous prime is 51865279. The next prime is 51865301. The reversal of 51865288 is 88256815.

51865288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 170458 + ... + 170761.

It is an arithmetic number, because the mean of its divisors is an integer number (6397875).

Almost surely, 2^51865288 is an apocalyptic number.

It is an amenable number.

51865288 is a deficient number, since it is larger than the sum of its proper divisors (50500712).

51865288 is a wasteful number, since it uses less digits than its factorization.

51865288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341244 (or 341240 counting only the distinct ones).

The product of its digits is 153600, while the sum is 43.

The square root of 51865288 is about 7201.7558970018. The cubic root of 51865288 is about 372.9285202534.

The spelling of 51865288 in words is "fifty-one million, eight hundred sixty-five thousand, two hundred eighty-eight".