16555255 has 4 divisors (see below), whose sum is σ = 19866312. Its totient is φ = 13244200.

The previous prime is 16555249. The next prime is 16555277. The reversal of 16555255 is 55255561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55255561 = 89 ⋅620849.

It is not a de Polignac number, because 16555255 - 2⁹ = 16554743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16555255.

It is a congruent number.

It is an unprimeable number.

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, 1655521 + ... + 1655530.

It is an arithmetic number, because the mean of its divisors is an integer number (4966578).

Almost surely, 2^16555255 is an apocalyptic number.

16555255 is a deficient number, since it is larger than the sum of its proper divisors (3311057).

16555255 is an equidigital number, since it uses as much as digits as its factorization.

16555255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311056.

The product of its digits is 37500, while the sum is 34.

The square root of 16555255 is about 4068.8149380379. The cubic root of 16555255 is about 254.8660324117.

The spelling of 16555255 in words is "sixteen million, five hundred fifty-five thousand, two hundred fifty-five".