52403543 has 4 divisors (see below), whose sum is σ = 53518560. Its totient is φ = 51288528.

The previous prime is 52403513. The next prime is 52403557. The reversal of 52403543 is 34530425.

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 52403543 - 2⁶ = 52403479 is a prime.

It is a super-2 number, since 2×52403543² = 5492262637905698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52403513) 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, 557438 + ... + 557531.

It is an arithmetic number, because the mean of its divisors is an integer number (13379640).

Almost surely, 2^52403543 is an apocalyptic number.

52403543 is a deficient number, since it is larger than the sum of its proper divisors (1115017).

52403543 is a wasteful number, since it uses less digits than its factorization.

52403543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115016.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 52403543 is about 7239.0291476136. The cubic root of 52403543 is about 374.2141599946.

Adding to 52403543 its reverse (34530425), we get a palindrome (86933968).

The spelling of 52403543 in words is "fifty-two million, four hundred three thousand, five hundred forty-three".