16233505 has 16 divisors (see below), whose sum is σ = 20710080. Its totient is φ = 12180672.

The previous prime is 16233463. The next prime is 16233517. The reversal of 16233505 is 50533261.

It is a happy number.

It is not a de Polignac number, because 16233505 - 2¹⁹ = 15709217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16233505.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9367 + ... + 10963.

It is an arithmetic number, because the mean of its divisors is an integer number (1294380).

Almost surely, 2^16233505 is an apocalyptic number.

It is an amenable number.

16233505 is a deficient number, since it is larger than the sum of its proper divisors (4476575).

16233505 is a wasteful number, since it uses less digits than its factorization.

16233505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 16233505 is about 4029.0824017386. The cubic root of 16233505 is about 253.2041190462.

Adding to 16233505 its reverse (50533261), we get a palindrome (66766766).

The spelling of 16233505 in words is "sixteen million, two hundred thirty-three thousand, five hundred five".