53313443 has 4 divisors (see below), whose sum is σ = 53328528. Its totient is φ = 53298360.

The previous prime is 53313391. The next prime is 53313461. The reversal of 53313443 is 34431335.

It is a happy number.

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 53313443 - 2¹⁰ = 53312419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53313643) 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, 938 + ... + 10368.

It is an arithmetic number, because the mean of its divisors is an integer number (13332132).

Almost surely, 2^53313443 is an apocalyptic number.

53313443 is a deficient number, since it is larger than the sum of its proper divisors (15085).

53313443 is an equidigital number, since it uses as much as digits as its factorization.

53313443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15084.

The product of its digits is 6480, while the sum is 26.

The square root of 53313443 is about 7301.6055083796. The cubic root of 53313443 is about 376.3676119333.

Adding to 53313443 its reverse (34431335), we get a palindrome (87744778).

The spelling of 53313443 in words is "fifty-three million, three hundred thirteen thousand, four hundred forty-three".