16227855 has 24 divisors (see below), whose sum is σ = 32147232. Its totient is φ = 7418304.

The previous prime is 16227851. The next prime is 16227859. The reversal of 16227855 is 55872261.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16227851) and next prime (16227859).

It is not a de Polignac number, because 16227855 - 2² = 16227851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16227851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25444 + ... + 26073.

It is an arithmetic number, because the mean of its divisors is an integer number (1339468).

Almost surely, 2^16227855 is an apocalyptic number.

16227855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16227855 is a deficient number, since it is larger than the sum of its proper divisors (15919377).

16227855 is a wasteful number, since it uses less digits than its factorization.

16227855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51535 (or 51532 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 16227855 is about 4028.3811885173. The cubic root of 16227855 is about 253.1747401109.

The spelling of 16227855 in words is "sixteen million, two hundred twenty-seven thousand, eight hundred fifty-five".