51875887 has 8 divisors (see below), whose sum is σ = 60889376. Its totient is φ = 43263072.

The previous prime is 51875861. The next prime is 51875911. The reversal of 51875887 is 78857815.

51875887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51875887 is a prime.

It is a super-2 number, since 2×51875887² = 5382215304073538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51875887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51875387) 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 7 ways as a sum of consecutive naturals, for example, 99888 + ... + 100405.

It is an arithmetic number, because the mean of its divisors is an integer number (7611172).

Almost surely, 2^51875887 is an apocalyptic number.

51875887 is a deficient number, since it is larger than the sum of its proper divisors (9013489).

51875887 is a wasteful number, since it uses less digits than its factorization.

51875887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200337.

The product of its digits is 627200, while the sum is 49.

The square root of 51875887 is about 7202.4917216197. The cubic root of 51875887 is about 372.9539219579.

The spelling of 51875887 in words is "fifty-one million, eight hundred seventy-five thousand, eight hundred eighty-seven".