16256481 has 8 divisors (see below), whose sum is σ = 21770880. Its totient is φ = 10789872.

The previous prime is 16256413. The next prime is 16256483. The reversal of 16256481 is 18465261.

16256481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-16256481 is a prime.

It is a super-2 number, since 2×16256481² = 528546349006722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16256483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11145 + ... + 12518.

It is an arithmetic number, because the mean of its divisors is an integer number (2721360).

Almost surely, 2^16256481 is an apocalyptic number.

It is an amenable number.

16256481 is a deficient number, since it is larger than the sum of its proper divisors (5514399).

16256481 is a wasteful number, since it uses less digits than its factorization.

16256481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23895.

The product of its digits is 11520, while the sum is 33.

The square root of 16256481 is about 4031.9326631282. The cubic root of 16256481 is about 253.3235197414.

The spelling of 16256481 in words is "sixteen million, two hundred fifty-six thousand, four hundred eighty-one".