16551359 has 4 divisors (see below), whose sum is σ = 18056040. Its totient is φ = 15046680.

The previous prime is 16551343. The next prime is 16551361. The reversal of 16551359 is 95315561.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16551359 - 2⁴ = 16551343 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 (16551389) 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, 752324 + ... + 752345.

It is an arithmetic number, because the mean of its divisors is an integer number (4514010).

Almost surely, 2^16551359 is an apocalyptic number.

16551359 is a deficient number, since it is larger than the sum of its proper divisors (1504681).

16551359 is a wasteful number, since it uses less digits than its factorization.

16551359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504680.

The product of its digits is 20250, while the sum is 35.

The square root of 16551359 is about 4068.3361463871. The cubic root of 16551359 is about 254.8460380360.

The spelling of 16551359 in words is "sixteen million, five hundred fifty-one thousand, three hundred fifty-nine".