51451323 has 48 divisors (see below), whose sum is σ = 89040384. Its totient is φ = 26120640.

The previous prime is 51451313. The next prime is 51451327. The reversal of 51451323 is 32315415.

51451323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51451323 - 2¹⁰ = 51450299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51451293 and 51451302.

It is not an unprimeable number, because it can be changed into a prime (51451327) 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 47 ways as a sum of consecutive naturals, for example, 75661 + ... + 76337.

It is an arithmetic number, because the mean of its divisors is an integer number (1855008).

Almost surely, 2^51451323 is an apocalyptic number.

51451323 is a deficient number, since it is larger than the sum of its proper divisors (37589061).

51451323 is a wasteful number, since it uses less digits than its factorization.

51451323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752 (or 745 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 51451323 is about 7172.9577581358. The cubic root of 51451323 is about 371.9336871623.

Adding to 51451323 its reverse (32315415), we get a palindrome (83766738).

The spelling of 51451323 in words is "fifty-one million, four hundred fifty-one thousand, three hundred twenty-three".