51280712 has 16 divisors (see below), whose sum is σ = 109887360. Its totient is φ = 21977424.

The previous prime is 51280711. The next prime is 51280741. The reversal of 51280712 is 21708215.

51280712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51280712² = 5259422846453888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51280711) 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, 457808 + ... + 457919.

It is an arithmetic number, because the mean of its divisors is an integer number (6867960).

Almost surely, 2^51280712 is an apocalyptic number.

It is an amenable number.

51280712 is an abundant number, since it is smaller than the sum of its proper divisors (58606648).

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

51280712 is a wasteful number, since it uses less digits than its factorization.

51280712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915740 (or 915736 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 51280712 is about 7161.0552295035. The cubic root of 51280712 is about 371.5221250394.

Adding to 51280712 its reverse (21708215), we get a palindrome (72988927).

The spelling of 51280712 in words is "fifty-one million, two hundred eighty thousand, seven hundred twelve".