16211055 has 32 divisors (see below), whose sum is σ = 30140928. Its totient is φ = 7286400.

The previous prime is 16211053. The next prime is 16211059. The reversal of 16211055 is 55011261.

It is not a de Polignac number, because 16211055 - 2¹ = 16211053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16211053) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5140 + ... + 7670.

It is an arithmetic number, because the mean of its divisors is an integer number (941904).

Almost surely, 2^16211055 is an apocalyptic number.

16211055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16211055 is a deficient number, since it is larger than the sum of its proper divisors (13929873).

16211055 is a wasteful number, since it uses less digits than its factorization.

16211055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 16211055 is about 4026.2954437050. The cubic root of 16211055 is about 253.0873429730.

It can be divided in two parts, 162110 and 55, that added together give a triangular number (162165 = T₅₆₉).

The spelling of 16211055 in words is "sixteen million, two hundred eleven thousand, fifty-five".