52543469 has 4 divisors (see below), whose sum is σ = 57320160. Its totient is φ = 47766780.

The previous prime is 52543459. The next prime is 52543489. The reversal of 52543469 is 96434525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52543469 is a prime.

It is a super-2 number, since 2×52543469² = 5521632269107922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52543409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2388329 + ... + 2388350.

It is an arithmetic number, because the mean of its divisors is an integer number (14330040).

Almost surely, 2^52543469 is an apocalyptic number.

It is an amenable number.

52543469 is a deficient number, since it is larger than the sum of its proper divisors (4776691).

52543469 is a wasteful number, since it uses less digits than its factorization.

52543469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776690.

The product of its digits is 129600, while the sum is 38.

The square root of 52543469 is about 7248.6873984191. The cubic root of 52543469 is about 374.5469349133.

The spelling of 52543469 in words is "fifty-two million, five hundred forty-three thousand, four hundred sixty-nine".