51766329 has 4 divisors (see below), whose sum is σ = 69021776. Its totient is φ = 34510884.

The previous prime is 51766327. The next prime is 51766339. The reversal of 51766329 is 92366715.

51766329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51766329 - 2¹ = 51766327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51766321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8627719 + ... + 8627724.

It is an arithmetic number, because the mean of its divisors is an integer number (17255444).

Almost surely, 2^51766329 is an apocalyptic number.

It is an amenable number.

51766329 is a deficient number, since it is larger than the sum of its proper divisors (17255447).

51766329 is a wasteful number, since it uses less digits than its factorization.

51766329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17255446.

The product of its digits is 68040, while the sum is 39.

The square root of 51766329 is about 7194.8821394099. The cubic root of 51766329 is about 372.6911866331.

The spelling of 51766329 in words is "fifty-one million, seven hundred sixty-six thousand, three hundred twenty-nine".