51881283 has 8 divisors (see below), whose sum is σ = 76861200. Its totient is φ = 34587504.

The previous prime is 51881251. The next prime is 51881287. The reversal of 51881283 is 38218815.

51881283 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51881283 - 2⁵ = 51881251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51881287) 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, 960738 + ... + 960791.

It is an arithmetic number, because the mean of its divisors is an integer number (9607650).

Almost surely, 2^51881283 is an apocalyptic number.

51881283 is a deficient number, since it is larger than the sum of its proper divisors (24979917).

51881283 is a wasteful number, since it uses less digits than its factorization.

51881283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921538 (or 1921532 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The square root of 51881283 is about 7202.8663044652. The cubic root of 51881283 is about 372.9668527543.

The spelling of 51881283 in words is "fifty-one million, eight hundred eighty-one thousand, two hundred eighty-three".