648535005 has 40 divisors (see below), whose sum is σ = 1168723512. Its totient is φ = 344051712.

The previous prime is 648535003. The next prime is 648535051. The reversal of 648535005 is 500535846.

648535005 is a `hidden beast` number, since 648 + 5 + 3 + 5 + 0 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 168662169 + 479872836 = 12987^2 + 21906^2 .

It is not a de Polignac number, because 648535005 - 2¹ = 648535003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648535003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 74017 + ... + 82313.

Almost surely, 2^648535005 is an apocalyptic number.

It is an amenable number.

648535005 is a deficient number, since it is larger than the sum of its proper divisors (520188507).

648535005 is a wasteful number, since it uses less digits than its factorization.

648535005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507 (or 8498 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 648535005 is about 25466.3504452444. The cubic root of 648535005 is about 865.5878281335.

The spelling of 648535005 in words is "six hundred forty-eight million, five hundred thirty-five thousand, five".