53644134223 has 4 divisors (see below), whose sum is σ = 53649097888. Its totient is φ = 53639170560.

The previous prime is 53644134221. The next prime is 53644134227. The reversal of 53644134223 is 32243144635.

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 53644134223 - 2¹ = 53644134221 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 (53644134221) 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, 2465586 + ... + 2487247.

It is an arithmetic number, because the mean of its divisors is an integer number (13412274472).

Almost surely, 2^53644134223 is an apocalyptic number.

53644134223 is a deficient number, since it is larger than the sum of its proper divisors (4963665).

53644134223 is a wasteful number, since it uses less digits than its factorization.

53644134223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963664.

The product of its digits is 207360, while the sum is 37.

Adding to 53644134223 its reverse (32243144635), we get a palindrome (85887278858).

The spelling of 53644134223 in words is "fifty-three billion, six hundred forty-four million, one hundred thirty-four thousand, two hundred twenty-three".