53331543 has 6 divisors (see below), whose sum is σ = 77034464. Its totient is φ = 35554356.

The previous prime is 53331527. The next prime is 53331547. The reversal of 53331543 is 34513335.

It is a happy number.

It is not a de Polignac number, because 53331543 - 2⁴ = 53331527 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 (53331547) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2962855 + ... + 2962872.

Almost surely, 2^53331543 is an apocalyptic number.

53331543 is a deficient number, since it is larger than the sum of its proper divisors (23702921).

53331543 is a wasteful number, since it uses less digits than its factorization.

53331543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5925733 (or 5925730 counting only the distinct ones).

The product of its digits is 8100, while the sum is 27.

The square root of 53331543 is about 7302.8448566295. The cubic root of 53331543 is about 376.4101995849.

Adding to 53331543 its reverse (34513335), we get a palindrome (87844878).

The spelling of 53331543 in words is "fifty-three million, three hundred thirty-one thousand, five hundred forty-three".