53002443 has 16 divisors (see below), whose sum is σ = 77073920. Its totient is φ = 32202144.

The previous prime is 53002441. The next prime is 53002471. The reversal of 53002443 is 34420035.

It is a happy number.

It is not a de Polignac number, because 53002443 - 2¹ = 53002441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53002441) 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 15 ways as a sum of consecutive naturals, for example, 5521 + ... + 11682.

It is an arithmetic number, because the mean of its divisors is an integer number (4817120).

Almost surely, 2^53002443 is an apocalyptic number.

53002443 is a deficient number, since it is larger than the sum of its proper divisors (24071477).

53002443 is a wasteful number, since it uses less digits than its factorization.

53002443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17298.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 53002443 is about 7280.2776732759. The cubic root of 53002443 is about 375.6343467838.

Adding to 53002443 its reverse (34420035), we get a palindrome (87422478).

The spelling of 53002443 in words is "fifty-three million, two thousand, four hundred forty-three".