648012925 has 24 divisors (see below), whose sum is σ = 958260096. Its totient is φ = 425029440.

The previous prime is 648012901. The next prime is 648012941. The reversal of 648012925 is 529210846.

It is not a de Polignac number, because 648012925 - 2¹¹ = 648010877 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 23 ways as a sum of consecutive naturals, for example, 76474 + ... + 84523.

It is an arithmetic number, because the mean of its divisors is an integer number (39927504).

Almost surely, 2^648012925 is an apocalyptic number.

It is an amenable number.

648012925 is a deficient number, since it is larger than the sum of its proper divisors (310247171).

648012925 is a wasteful number, since it uses less digits than its factorization.

648012925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161037 (or 161032 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 648012925 is about 25456.0979924261. The cubic root of 648012925 is about 865.3554955646.

The spelling of 648012925 in words is "six hundred forty-eight million, twelve thousand, nine hundred twenty-five".