51347886 has 8 divisors (see below), whose sum is σ = 102695784. Its totient is φ = 17115960.

The previous prime is 51347833. The next prime is 51347887. The reversal of 51347886 is 68874315.

51347886 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.

51347886 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51347887) 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 3 ways as a sum of consecutive naturals, for example, 4278985 + ... + 4278996.

It is an arithmetic number, because the mean of its divisors is an integer number (12836973).

Almost surely, 2^51347886 is an apocalyptic number.

51347886 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51347886 is a wasteful number, since it uses less digits than its factorization.

51347886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8557986.

The product of its digits is 161280, while the sum is 42.

The square root of 51347886 is about 7165.7439250925. The cubic root of 51347886 is about 371.6842765714.

The spelling of 51347886 in words is "fifty-one million, three hundred forty-seven thousand, eight hundred eighty-six".