53004143 has 4 divisors (see below), whose sum is σ = 53019120. Its totient is φ = 52989168.

The previous prime is 53004139. The next prime is 53004163. The reversal of 53004143 is 34140035.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53004143 - 2² = 53004139 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 (53004163) 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, 1118 + ... + 10356.

It is an arithmetic number, because the mean of its divisors is an integer number (13254780).

Almost surely, 2^53004143 is an apocalyptic number.

53004143 is a deficient number, since it is larger than the sum of its proper divisors (14977).

53004143 is an equidigital number, since it uses as much as digits as its factorization.

53004143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14976.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 53004143 is about 7280.3944261283. The cubic root of 53004143 is about 375.6383627720.

Adding to 53004143 its reverse (34140035), we get a palindrome (87144178).

The spelling of 53004143 in words is "fifty-three million, four thousand, one hundred forty-three".