51310086 has 16 divisors (see below), whose sum is σ = 102736944. Its totient is φ = 17083904.

The previous prime is 51310081. The next prime is 51310093. The reversal of 51310086 is 68001315.

51310086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51310081) 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, 1486 + ... + 10238.

It is an arithmetic number, because the mean of its divisors is an integer number (6421059).

Almost surely, 2^51310086 is an apocalyptic number.

51310086 is an abundant number, since it is smaller than the sum of its proper divisors (51426858).

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

51310086 is a wasteful number, since it uses less digits than its factorization.

51310086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9735.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 51310086 is about 7163.1058906036. The cubic root of 51310086 is about 371.5930484428.

The spelling of 51310086 in words is "fifty-one million, three hundred ten thousand, eighty-six".