16090555 has 8 divisors (see below), whose sum is σ = 20794032. Its totient is φ = 11882208.

The previous prime is 16090541. The next prime is 16090559. The reversal of 16090555 is 55509061.

It is a happy number.

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

It is not a de Polignac number, because 16090555 - 2⁷ = 16090427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16090559) 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, 123709 + ... + 123838.

It is an arithmetic number, because the mean of its divisors is an integer number (2599254).

Almost surely, 2^16090555 is an apocalyptic number.

16090555 is a deficient number, since it is larger than the sum of its proper divisors (4703477).

16090555 is a wasteful number, since it uses less digits than its factorization.

16090555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247565.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 16090555 is about 4011.3034041319. The cubic root of 16090555 is about 252.4586999079.

The spelling of 16090555 in words is "sixteen million, ninety thousand, five hundred fifty-five".