54840665 has 8 divisors (see below), whose sum is σ = 71791488. Its totient is φ = 39884080.

The previous prime is 54840641. The next prime is 54840713. The reversal of 54840665 is 56604845.

54840665 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 not a de Polignac number, because 54840665 - 2⁶ = 54840601 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498497 + ... + 498606.

It is an arithmetic number, because the mean of its divisors is an integer number (8973936).

Almost surely, 2^54840665 is an apocalyptic number.

54840665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54840665 is a deficient number, since it is larger than the sum of its proper divisors (16950823).

54840665 is a wasteful number, since it uses less digits than its factorization.

54840665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997119.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 54840665 is about 7405.4483321403. The cubic root of 54840665 is about 379.9276524317.

The spelling of 54840665 in words is "fifty-four million, eight hundred forty thousand, six hundred sixty-five".