51408712 has 16 divisors (see below), whose sum is σ = 96507900. Its totient is φ = 25673280.

The previous prime is 51408689. The next prime is 51408713. The reversal of 51408712 is 21780415.

It can be written as a sum of positive squares in 2 ways, for example, as 51065316 + 343396 = 7146^2 + 586^2 .

It is not an unprimeable number, because it can be changed into a prime (51408713) by changing a digit.

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, 4114 + ... + 10942.

Almost surely, 2^51408712 is an apocalyptic number.

It is an amenable number.

51408712 is a deficient number, since it is larger than the sum of its proper divisors (45099188).

51408712 is a wasteful number, since it uses less digits than its factorization.

51408712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776 (or 7772 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 51408712 is about 7169.9868898067. The cubic root of 51408712 is about 371.8309826864.

The spelling of 51408712 in words is "fifty-one million, four hundred eight thousand, seven hundred twelve".