53542311443 has 4 divisors (see below), whose sum is σ = 53553585888. Its totient is φ = 53531037000.

The previous prime is 53542311421. The next prime is 53542311469. The reversal of 53542311443 is 34411324535.

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 53542311443 - 2⁸ = 53542311187 is a prime.

It is a super-2 number, since 2×53542311443² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53542311143) 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, 5630096 + ... + 5639597.

It is an arithmetic number, because the mean of its divisors is an integer number (13388396472).

Almost surely, 2^53542311443 is an apocalyptic number.

53542311443 is a deficient number, since it is larger than the sum of its proper divisors (11274445).

53542311443 is a wasteful number, since it uses less digits than its factorization.

53542311443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11274444.

The product of its digits is 86400, while the sum is 35.

Adding to 53542311443 its reverse (34411324535), we get a palindrome (87953635978).

The spelling of 53542311443 in words is "fifty-three billion, five hundred forty-two million, three hundred eleven thousand, four hundred forty-three".