51457423 has 2 divisors, whose sum is σ = 51457424. Its totient is φ = 51457422.

The previous prime is 51457421. The next prime is 51457451. The reversal of 51457423 is 32475415.

51457423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51457423 - 2¹ = 51457421 is a prime.

Together with 51457421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51457421) 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 as a sum of consecutive naturals, namely, 25728711 + 25728712.

It is an arithmetic number, because the mean of its divisors is an integer number (25728712).

Almost surely, 2^51457423 is an apocalyptic number.

51457423 is a deficient number, since it is larger than the sum of its proper divisors (1).

51457423 is an equidigital number, since it uses as much as digits as its factorization.

51457423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16800, while the sum is 31.

The square root of 51457423 is about 7173.3829536698. The cubic root of 51457423 is about 371.9483852349.

The spelling of 51457423 in words is "fifty-one million, four hundred fifty-seven thousand, four hundred twenty-three".