16004055 has 16 divisors (see below), whose sum is σ = 27113184. Its totient is φ = 8033280.

The previous prime is 16004047. The next prime is 16004059. The reversal of 16004055 is 55040061.

It is a happy number.

It is not a de Polignac number, because 16004055 - 2³ = 16004047 is a prime.

It is a super-2 number, since 2×16004055² = 512259552886050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16004059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31126 + ... + 31635.

It is an arithmetic number, because the mean of its divisors is an integer number (1694574).

Almost surely, 2^16004055 is an apocalyptic number.

16004055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16004055 is a deficient number, since it is larger than the sum of its proper divisors (11109129).

16004055 is a wasteful number, since it uses less digits than its factorization.

16004055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62786.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 16004055 is about 4000.5068428888. The cubic root of 16004055 is about 252.0054955970.

The spelling of 16004055 in words is "sixteen million, four thousand, fifty-five".