16253856 has 36 divisors (see below), whose sum is σ = 46222722. Its totient is φ = 5417856.

The previous prime is 16253849. The next prime is 16253857. The reversal of 16253856 is 65835261.

It can be written as a sum of positive squares in only one way, i.e., 10890000 + 5363856 = 3300^2 + 2316^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 16253856.

It is not an unprimeable number, because it can be changed into a prime (16253857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27931 + ... + 28506.

Almost surely, 2^16253856 is an apocalyptic number.

16253856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16253856 is an abundant number, since it is smaller than the sum of its proper divisors (29968866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16253856 is a wasteful number, since it uses less digits than its factorization.

16253856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56453 (or 56442 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 16253856 is about 4031.6071237163. The cubic root of 16253856 is about 253.3098839483.

The spelling of 16253856 in words is "sixteen million, two hundred fifty-three thousand, eight hundred fifty-six".