51311082 has 16 divisors (see below), whose sum is σ = 105396192. Its totient is φ = 16641360.

The previous prime is 51311041. The next prime is 51311089. The reversal of 51311082 is 28011315.

It is not an unprimeable number, because it can be changed into a prime (51311089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115344 + ... + 115787.

It is an arithmetic number, because the mean of its divisors is an integer number (6587262).

Almost surely, 2^51311082 is an apocalyptic number.

51311082 is an abundant number, since it is smaller than the sum of its proper divisors (54085110).

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

51311082 is a wasteful number, since it uses less digits than its factorization.

51311082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231173.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 51311082 is about 7163.1754131809. The cubic root of 51311082 is about 371.5954528062.

Adding to 51311082 its reverse (28011315), we get a palindrome (79322397).

The spelling of 51311082 in words is "fifty-one million, three hundred eleven thousand, eighty-two".