51045312 has 28 divisors (see below), whose sum is σ = 135057896. Its totient is φ = 17015040.

The previous prime is 51045301. The next prime is 51045353. The reversal of 51045312 is 21354015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132739 + ... + 133122.

Almost surely, 2^51045312 is an apocalyptic number.

It is an amenable number.

51045312 is an abundant number, since it is smaller than the sum of its proper divisors (84012584).

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

51045312 is a wasteful number, since it uses less digits than its factorization.

51045312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265876 (or 265866 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 51045312 is about 7144.6001987515. The cubic root of 51045312 is about 370.9527721091.

Adding to 51045312 its reverse (21354015), we get a palindrome (72399327).

The spelling of 51045312 in words is "fifty-one million, forty-five thousand, three hundred twelve".