65551343 has 8 divisors (see below), whose sum is σ = 77011536. Its totient is φ = 55008000.

The previous prime is 65551331. The next prime is 65551361. The reversal of 65551343 is 34315556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65551343 - 2⁴ = 65551327 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 (65551373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229058 + ... + 229343.

It is an arithmetic number, because the mean of its divisors is an integer number (9626442).

Almost surely, 2^65551343 is an apocalyptic number.

65551343 is a deficient number, since it is larger than the sum of its proper divisors (11460193).

65551343 is a wasteful number, since it uses less digits than its factorization.

65551343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458425.

The product of its digits is 27000, while the sum is 32.

The square root of 65551343 is about 8096.3783878967. The cubic root of 65551343 is about 403.2061966765.

Adding to 65551343 its reverse (34315556), we get a palindrome (99866899).

It can be divided in two parts, 655513 and 43, that added together give a palindrome (655556).

The spelling of 65551343 in words is "sixty-five million, five hundred fifty-one thousand, three hundred forty-three".