51453423 has 24 divisors (see below), whose sum is σ = 85127328. Its totient is φ = 29336832.

The previous prime is 51453403. The next prime is 51453433. The reversal of 51453423 is 32435415.

It is not a de Polignac number, because 51453423 - 2⁸ = 51453167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51453403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53515 + ... + 54467.

It is an arithmetic number, because the mean of its divisors is an integer number (3546972).

Almost surely, 2^51453423 is an apocalyptic number.

51453423 is a deficient number, since it is larger than the sum of its proper divisors (33673905).

51453423 is a wasteful number, since it uses less digits than its factorization.

51453423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823 (or 1820 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 51453423 is about 7173.1041397710. The cubic root of 51453423 is about 371.9387472856.

Adding to 51453423 its reverse (32435415), we get a palindrome (83888838).

The spelling of 51453423 in words is "fifty-one million, four hundred fifty-three thousand, four hundred twenty-three".