51168967 has 8 divisors (see below), whose sum is σ = 51682176. Its totient is φ = 50658552.

The previous prime is 51168961. The next prime is 51168979. The reversal of 51168967 is 76986115.

It is a happy number.

51168967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51168967 - 2²³ = 42780359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51168961) 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 7 ways as a sum of consecutive naturals, for example, 57508 + ... + 58390.

It is an arithmetic number, because the mean of its divisors is an integer number (6460272).

Almost surely, 2^51168967 is an apocalyptic number.

51168967 is a deficient number, since it is larger than the sum of its proper divisors (513209).

51168967 is a wasteful number, since it uses less digits than its factorization.

51168967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397.

The product of its digits is 90720, while the sum is 43.

The square root of 51168967 is about 7153.2487025127. The cubic root of 51168967 is about 371.2520694296.

The spelling of 51168967 in words is "fifty-one million, one hundred sixty-eight thousand, nine hundred sixty-seven".