51766911 has 16 divisors (see below), whose sum is σ = 87648000. Its totient is φ = 29580984.

The previous prime is 51766909. The next prime is 51766919. The reversal of 51766911 is 11966715.

It is a happy number.

It is not a de Polignac number, because 51766911 - 2¹ = 51766909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51766919) 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 15 ways as a sum of consecutive naturals, for example, 136761 + ... + 137138.

It is an arithmetic number, because the mean of its divisors is an integer number (5478000).

Almost surely, 2^51766911 is an apocalyptic number.

51766911 is a deficient number, since it is larger than the sum of its proper divisors (35881089).

51766911 is a wasteful number, since it uses less digits than its factorization.

51766911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273915 (or 273909 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 51766911 is about 7194.9225847121. The cubic root of 51766911 is about 372.6925833290.

The spelling of 51766911 in words is "fifty-one million, seven hundred sixty-six thousand, nine hundred eleven".