53505342443 has 8 divisors (see below), whose sum is σ = 61630451712. Its totient is φ = 45500605416.

The previous prime is 53505342383. The next prime is 53505342491. The reversal of 53505342443 is 34424350535.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53505342443 - 2⁶ = 53505342379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53505342397 and 53505342406.

It is not an unprimeable number, because it can be changed into a prime (53505342643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30092105 + ... + 30093882.

It is an arithmetic number, because the mean of its divisors is an integer number (7703806464).

Almost surely, 2^53505342443 is an apocalyptic number.

53505342443 is a deficient number, since it is larger than the sum of its proper divisors (8125109269).

53505342443 is a wasteful number, since it uses less digits than its factorization.

53505342443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60186121.

The product of its (nonzero) digits is 432000, while the sum is 38.

Adding to 53505342443 its reverse (34424350535), we get a palindrome (87929692978).

The spelling of 53505342443 in words is "fifty-three billion, five hundred five million, three hundred forty-two thousand, four hundred forty-three".