51823123 has 16 divisors (see below), whose sum is σ = 60498144. Its totient is φ = 43868160.

The previous prime is 51823091. The next prime is 51823129. The reversal of 51823123 is 32132815.

It is not a de Polignac number, because 51823123 - 2⁵ = 51823091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51823129) 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 15 ways as a sum of consecutive naturals, for example, 16711 + ... + 19567.

It is an arithmetic number, because the mean of its divisors is an integer number (3781134).

Almost surely, 2^51823123 is an apocalyptic number.

51823123 is a deficient number, since it is larger than the sum of its proper divisors (8675021).

51823123 is a wasteful number, since it uses less digits than its factorization.

51823123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982.

The product of its digits is 1440, while the sum is 25.

The square root of 51823123 is about 7198.8278907055. The cubic root of 51823123 is about 372.8274327709.

Adding to 51823123 its reverse (32132815), we get a palindrome (83955938).

The spelling of 51823123 in words is "fifty-one million, eight hundred twenty-three thousand, one hundred twenty-three".