54442865 has 4 divisors (see below), whose sum is σ = 65331444. Its totient is φ = 43554288.

The previous prime is 54442807. The next prime is 54442877. The reversal of 54442865 is 56824445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16386304 + 38056561 = 4048^2 + 6169^2 .

It is a cyclic number.

It is not a de Polignac number, because 54442865 - 2¹⁰ = 54441841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5444282 + ... + 5444291.

It is an arithmetic number, because the mean of its divisors is an integer number (16332861).

Almost surely, 2^54442865 is an apocalyptic number.

It is an amenable number.

54442865 is a deficient number, since it is larger than the sum of its proper divisors (10888579).

54442865 is a wasteful number, since it uses less digits than its factorization.

54442865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10888578.

The product of its digits is 153600, while the sum is 38.

The square root of 54442865 is about 7378.5408449096. The cubic root of 54442865 is about 379.0067899545.

The spelling of 54442865 in words is "fifty-four million, four hundred forty-two thousand, eight hundred sixty-five".