51466823 has 4 divisors (see below), whose sum is σ = 51481248. Its totient is φ = 51452400.

The previous prime is 51466817. The next prime is 51466843. The reversal of 51466823 is 32866415.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 51466823 - 2⁶ = 51466759 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 (51466843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2498 + ... + 10448.

It is an arithmetic number, because the mean of its divisors is an integer number (12870312).

Almost surely, 2^51466823 is an apocalyptic number.

51466823 is a deficient number, since it is larger than the sum of its proper divisors (14425).

51466823 is an equidigital number, since it uses as much as digits as its factorization.

51466823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14424.

The product of its digits is 34560, while the sum is 35.

The square root of 51466823 is about 7174.0381236790. The cubic root of 51466823 is about 371.9710324497.

The spelling of 51466823 in words is "fifty-one million, four hundred sixty-six thousand, eight hundred twenty-three".