16055819 has 4 divisors (see below), whose sum is σ = 17290896. Its totient is φ = 14820744.

The previous prime is 16055807. The next prime is 16055833. The reversal of 16055819 is 91855061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91855061 = 47 ⋅1954363.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16055819 is a prime.

It is a super-2 number, since 2×16055819² = 515578647521522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16055119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 617519 + ... + 617544.

It is an arithmetic number, because the mean of its divisors is an integer number (4322724).

Almost surely, 2^16055819 is an apocalyptic number.

16055819 is a deficient number, since it is larger than the sum of its proper divisors (1235077).

16055819 is a wasteful number, since it uses less digits than its factorization.

16055819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235076.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 16055819 is about 4006.9713001218. The cubic root of 16055819 is about 252.2769012608.

The spelling of 16055819 in words is "sixteen million, fifty-five thousand, eight hundred nineteen".