53305423 has 4 divisors (see below), whose sum is σ = 54545128. Its totient is φ = 52065720.

The previous prime is 53305411. The next prime is 53305433. The reversal of 53305423 is 32450335.

It is a happy number.

53305423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53305423 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 (53305433) 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 3 ways as a sum of consecutive naturals, for example, 619788 + ... + 619873.

It is an arithmetic number, because the mean of its divisors is an integer number (13636282).

Almost surely, 2^53305423 is an apocalyptic number.

53305423 is a deficient number, since it is larger than the sum of its proper divisors (1239705).

53305423 is a wasteful number, since it uses less digits than its factorization.

53305423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239704.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 53305423 is about 7301.0562934414. The cubic root of 53305423 is about 376.3487385220.

Adding to 53305423 its reverse (32450335), we get a palindrome (85755758).

The spelling of 53305423 in words is "fifty-three million, three hundred five thousand, four hundred twenty-three".