51066717 has 16 divisors (see below), whose sum is σ = 74088000. Its totient is φ = 31099392.

The previous prime is 51066707. The next prime is 51066733. The reversal of 51066717 is 71766015.

It is not a de Polignac number, because 51066717 - 2¹⁴ = 51050333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51066707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2967 + ... + 10532.

It is an arithmetic number, because the mean of its divisors is an integer number (4630500).

Almost surely, 2^51066717 is an apocalyptic number.

It is an amenable number.

51066717 is a deficient number, since it is larger than the sum of its proper divisors (23021283).

51066717 is a wasteful number, since it uses less digits than its factorization.

51066717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13612.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 51066717 is about 7146.0980261958. The cubic root of 51066717 is about 371.0046158153.

The spelling of 51066717 in words is "fifty-one million, sixty-six thousand, seven hundred seventeen".