648741325 has 12 divisors (see below), whose sum is σ = 804992500. Its totient is φ = 518636160.

The previous prime is 648741323. The next prime is 648741341. The reversal of 648741325 is 523147846.

It can be written as a sum of positive squares in 6 ways, for example, as 40921609 + 607819716 = 6397^2 + 24654^2 .

It is not a de Polignac number, because 648741325 - 2¹ = 648741323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648741323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31801 + ... + 48049.

Almost surely, 2^648741325 is an apocalyptic number.

It is an amenable number.

648741325 is a deficient number, since it is larger than the sum of its proper divisors (156251175).

648741325 is a wasteful number, since it uses less digits than its factorization.

648741325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17856 (or 17851 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 648741325 is about 25470.4009587600. The cubic root of 648741325 is about 865.6796089135.

The spelling of 648741325 in words is "six hundred forty-eight million, seven hundred forty-one thousand, three hundred twenty-five".