51164323 has 16 divisors (see below), whose sum is σ = 61102080. Its totient is φ = 41914656.

The previous prime is 51164317. The next prime is 51164327. The reversal of 51164323 is 32346115.

It is a de Polignac number, because none of the positive numbers 2^k-51164323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51164327) 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, 19686 + ... + 22132.

It is an arithmetic number, because the mean of its divisors is an integer number (3818880).

Almost surely, 2^51164323 is an apocalyptic number.

51164323 is a deficient number, since it is larger than the sum of its proper divisors (9937757).

51164323 is a wasteful number, since it uses less digits than its factorization.

51164323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586.

The product of its digits is 2160, while the sum is 25.

The square root of 51164323 is about 7152.9240873925. The cubic root of 51164323 is about 371.2408377080.

The spelling of 51164323 in words is "fifty-one million, one hundred sixty-four thousand, three hundred twenty-three".