51087963 has 8 divisors (see below), whose sum is σ = 68150800. Its totient is φ = 34041888.

The previous prime is 51087947. The next prime is 51087977. The reversal of 51087963 is 36978015.

51087963 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 not a de Polignac number, because 51087963 - 2⁴ = 51087947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51087943) 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, 7953 + ... + 12861.

It is an arithmetic number, because the mean of its divisors is an integer number (8518850).

Almost surely, 2^51087963 is an apocalyptic number.

51087963 is a deficient number, since it is larger than the sum of its proper divisors (17062837).

51087963 is a wasteful number, since it uses less digits than its factorization.

51087963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8381.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 51087963 is about 7147.5844171300. The cubic root of 51087963 is about 371.0560600934.

The spelling of 51087963 in words is "fifty-one million, eighty-seven thousand, nine hundred sixty-three".