53809323 has 4 divisors (see below), whose sum is σ = 71745768. Its totient is φ = 35872880.

The previous prime is 53809321. The next prime is 53809331. The reversal of 53809323 is 32390835.

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

It is a cyclic number.

It is not a de Polignac number, because 53809323 - 2¹ = 53809321 is a prime.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (53809321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8968218 + ... + 8968223.

It is an arithmetic number, because the mean of its divisors is an integer number (17936442).

Almost surely, 2^53809323 is an apocalyptic number.

53809323 is a deficient number, since it is larger than the sum of its proper divisors (17936445).

53809323 is a wasteful number, since it uses less digits than its factorization.

53809323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17936444.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 53809323 is about 7335.4838286237. The cubic root of 53809323 is about 377.5309051785.

The spelling of 53809323 in words is "fifty-three million, eight hundred nine thousand, three hundred twenty-three".