51888865 has 16 divisors (see below), whose sum is σ = 71281152. Its totient is φ = 35521344.

The previous prime is 51888853. The next prime is 51888871. The reversal of 51888865 is 56888815.

51888865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51888865 - 2¹¹ = 51886817 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 34152 + ... + 35638.

It is an arithmetic number, because the mean of its divisors is an integer number (4455072).

Almost surely, 2^51888865 is an apocalyptic number.

It is an amenable number.

51888865 is a deficient number, since it is larger than the sum of its proper divisors (19392287).

51888865 is a wasteful number, since it uses less digits than its factorization.

51888865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496.

The product of its digits is 614400, while the sum is 49.

The square root of 51888865 is about 7203.3926034890. The cubic root of 51888865 is about 372.9850204940.

The spelling of 51888865 in words is "fifty-one million, eight hundred eighty-eight thousand, eight hundred sixty-five".