52840003 has 4 divisors (see below), whose sum is σ = 52894000. Its totient is φ = 52786008.

The previous prime is 52839989. The next prime is 52840009. The reversal of 52840003 is 30004825.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52840003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52840009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25503 + ... + 27496.

It is an arithmetic number, because the mean of its divisors is an integer number (13223500).

Almost surely, 2^52840003 is an apocalyptic number.

52840003 is a deficient number, since it is larger than the sum of its proper divisors (53997).

52840003 is an equidigital number, since it uses as much as digits as its factorization.

52840003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53996.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 52840003 is about 7269.1129445071. The cubic root of 52840003 is about 375.2502104969.

Adding to 52840003 its reverse (30004825), we get a palindrome (82844828).

The spelling of 52840003 in words is "fifty-two million, eight hundred forty thousand, three".