54163281 has 8 divisors (see below), whose sum is σ = 76018720. Its totient is φ = 34208352.

The previous prime is 54163279. The next prime is 54163283. The reversal of 54163281 is 18236145.

It is an interprime number because it is at equal distance from previous prime (54163279) and next prime (54163283).

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

It is not a de Polignac number, because 54163281 - 2¹ = 54163279 is a prime.

It is a super-2 number, since 2×54163281² = 5867322017369922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54163283) 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, 475060 + ... + 475173.

It is an arithmetic number, because the mean of its divisors is an integer number (9502340).

Almost surely, 2^54163281 is an apocalyptic number.

It is an amenable number.

54163281 is a deficient number, since it is larger than the sum of its proper divisors (21855439).

54163281 is a wasteful number, since it uses less digits than its factorization.

54163281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950255.

The product of its digits is 5760, while the sum is 30.

The square root of 54163281 is about 7359.5707075889. The cubic root of 54163281 is about 378.3568967623.

The spelling of 54163281 in words is "fifty-four million, one hundred sixty-three thousand, two hundred eighty-one".