16223056 has 20 divisors (see below), whose sum is σ = 31759252. Its totient is φ = 8027136.

The previous prime is 16223041. The next prime is 16223063. The reversal of 16223056 is 65032261.

16223056 = 360² + 361² + ... + 456².

It can be written as a sum of positive squares in 2 ways, for example, as 12673600 + 3549456 = 3560^2 + 1884^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16223056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3675 + ... + 6778.

Almost surely, 2^16223056 is an apocalyptic number.

16223056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16223056 is a deficient number, since it is larger than the sum of its proper divisors (15536196).

16223056 is a wasteful number, since it uses less digits than its factorization.

16223056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10558 (or 10552 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 16223056 is about 4027.7854957780. The cubic root of 16223056 is about 253.1497808590.

The spelling of 16223056 in words is "sixteen million, two hundred twenty-three thousand, fifty-six".