53109342443 has 4 divisors (see below), whose sum is σ = 53297008248. Its totient is φ = 52921676640.

The previous prime is 53109342409. The next prime is 53109342467. The reversal of 53109342443 is 34424390135.

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 53109342443 - 2⁶ = 53109342379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53109342397 and 53109342406.

It is not an unprimeable number, because it can be changed into a prime (53109342943) 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, 93832478 + ... + 93833043.

It is an arithmetic number, because the mean of its divisors is an integer number (13324252062).

Almost surely, 2^53109342443 is an apocalyptic number.

53109342443 is a deficient number, since it is larger than the sum of its proper divisors (187665805).

53109342443 is a wasteful number, since it uses less digits than its factorization.

53109342443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187665804.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 53109342443 in words is "fifty-three billion, one hundred nine million, three hundred forty-two thousand, four hundred forty-three".