65505423 has 8 divisors (see below), whose sum is σ = 87394608. Its totient is φ = 43643264.

The previous prime is 65505421. The next prime is 65505439. The reversal of 65505423 is 32450556.

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 65505423 - 2¹ = 65505421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65505421) 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, 186 + ... + 11447.

It is an arithmetic number, because the mean of its divisors is an integer number (10924326).

Almost surely, 2^65505423 is an apocalyptic number.

65505423 is a deficient number, since it is larger than the sum of its proper divisors (21889185).

65505423 is a wasteful number, since it uses less digits than its factorization.

65505423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13513.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 65505423 is about 8093.5420552438. The cubic root of 65505423 is about 403.1120234030.

Adding to 65505423 its reverse (32450556), we get a palindrome (97955979).

The spelling of 65505423 in words is "sixty-five million, five hundred five thousand, four hundred twenty-three".