51710409 has 12 divisors (see below), whose sum is σ = 75464116. Its totient is φ = 34117632.

The previous prime is 51710401. The next prime is 51710431. The reversal of 51710409 is 90401715.

It can be written as a sum of positive squares in 2 ways, for example, as 16426809 + 35283600 = 4053^2 + 5940^2 .

It is not a de Polignac number, because 51710409 - 2³ = 51710401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51710401) 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 11 ways as a sum of consecutive naturals, for example, 28744 + ... + 30489.

Almost surely, 2^51710409 is an apocalyptic number.

It is an amenable number.

51710409 is a deficient number, since it is larger than the sum of its proper divisors (23753707).

51710409 is a wasteful number, since it uses less digits than its factorization.

51710409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59336 (or 59333 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 51710409 is about 7190.9949937404. The cubic root of 51710409 is about 372.5569397816.

The spelling of 51710409 in words is "fifty-one million, seven hundred ten thousand, four hundred nine".