65253443 has 4 divisors (see below), whose sum is σ = 65393640. Its totient is φ = 65113248.

The previous prime is 65253421. The next prime is 65253449. The reversal of 65253443 is 34435256.

65253443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65253443 - 2⁶ = 65253379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65253449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69398 + ... + 70331.

It is an arithmetic number, because the mean of its divisors is an integer number (16348410).

Almost surely, 2^65253443 is an apocalyptic number.

65253443 is a deficient number, since it is larger than the sum of its proper divisors (140197).

65253443 is a wasteful number, since it uses less digits than its factorization.

65253443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140196.

The product of its digits is 43200, while the sum is 32.

The square root of 65253443 is about 8077.9603242403. The cubic root of 65253443 is about 402.5944749490.

Adding to 65253443 its reverse (34435256), we get a palindrome (99688699).

The spelling of 65253443 in words is "sixty-five million, two hundred fifty-three thousand, four hundred forty-three".