51314409 has 12 divisors (see below), whose sum is σ = 74386416. Its totient is φ = 34087032.

The previous prime is 51314407. The next prime is 51314413. The reversal of 51314409 is 90441315.

51314409 is a `hidden beast` number, since 513 + 144 + 0 + 9 = 666.

It is not a de Polignac number, because 51314409 - 2¹ = 51314407 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51314407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7527 + ... + 12620.

It is an arithmetic number, because the mean of its divisors is an integer number (6198868).

Almost surely, 2^51314409 is an apocalyptic number.

It is an amenable number.

51314409 is a deficient number, since it is larger than the sum of its proper divisors (23072007).

51314409 is a wasteful number, since it uses less digits than its factorization.

51314409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20436 (or 20433 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 51314409 is about 7163.4076388266. The cubic root of 51314409 is about 371.6034840235.

The spelling of 51314409 in words is "fifty-one million, three hundred fourteen thousand, four hundred nine".