53664223243 has 16 divisors (see below), whose sum is σ = 54514962432. Its totient is φ = 52820460000.

The previous prime is 53664223241. The next prime is 53664223259. The reversal of 53664223243 is 34232246635.

It is a cyclic number.

It is not a de Polignac number, because 53664223243 - 2¹ = 53664223241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53664223196 and 53664223205.

It is not an unprimeable number, because it can be changed into a prime (53664223241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23220058 + ... + 23222368.

It is an arithmetic number, because the mean of its divisors is an integer number (3407185152).

Almost surely, 2^53664223243 is an apocalyptic number.

53664223243 is a deficient number, since it is larger than the sum of its proper divisors (850739189).

53664223243 is a wasteful number, since it uses less digits than its factorization.

53664223243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666.

The product of its digits is 622080, while the sum is 40.

Adding to 53664223243 its reverse (34232246635), we get a palindrome (87896469878).

The spelling of 53664223243 in words is "fifty-three billion, six hundred sixty-four million, two hundred twenty-three thousand, two hundred forty-three".