648541875 has 20 divisors (see below), whose sum is σ = 1080560360. Its totient is φ = 345888000.

The previous prime is 648541853. The next prime is 648541897. The reversal of 648541875 is 578145846.

It is an interprime number because it is at equal distance from previous prime (648541853) and next prime (648541897).

It is not a de Polignac number, because 648541875 - 2¹² = 648537779 is a prime.

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 19 ways as a sum of consecutive naturals, for example, 171070 + ... + 174819.

It is an arithmetic number, because the mean of its divisors is an integer number (54028018).

Almost surely, 2^648541875 is an apocalyptic number.

648541875 is a deficient number, since it is larger than the sum of its proper divisors (432018485).

648541875 is an equidigital number, since it uses as much as digits as its factorization.

648541875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345912 (or 345897 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The square root of 648541875 is about 25466.4853287610. The cubic root of 648541875 is about 865.5908845439.

The spelling of 648541875 in words is "six hundred forty-eight million, five hundred forty-one thousand, eight hundred seventy-five".