648016285 has 16 divisors (see below), whose sum is σ = 940985856. Its totient is φ = 418215168.

The previous prime is 648016277. The next prime is 648016379. The reversal of 648016285 is 582610846.

It is not a de Polignac number, because 648016285 - 2³ = 648016277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543957 + ... + 545146.

It is an arithmetic number, because the mean of its divisors is an integer number (58811616).

Almost surely, 2^648016285 is an apocalyptic number.

It is an amenable number.

648016285 is a deficient number, since it is larger than the sum of its proper divisors (292969571).

648016285 is a wasteful number, since it uses less digits than its factorization.

648016285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089132.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 648016285 is about 25456.1639883153. The cubic root of 648016285 is about 865.3569912084.

The spelling of 648016285 in words is "six hundred forty-eight million, sixteen thousand, two hundred eighty-five".