648482650 has 48 divisors (see below), whose sum is σ = 1245154680. Its totient is φ = 251110400.

The previous prime is 648482633. The next prime is 648482651. The reversal of 648482650 is 56284846.

It can be written as a sum of positive squares in 12 ways, for example, as 24532209 + 623950441 = 4953^2 + 24979^2 .

It is a junction number, because it is equal to n+sod(n) for n = 648482597 and 648482606.

It is not an unprimeable number, because it can be changed into a prime (648482651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279696 + ... + 282004.

Almost surely, 2^648482650 is an apocalyptic number.

648482650 is a deficient number, since it is larger than the sum of its proper divisors (596672030).

648482650 is a wasteful number, since it uses less digits than its factorization.

648482650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499 (or 2494 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 43.

The square root of 648482650 is about 25465.3224994305. The cubic root of 648482650 is about 865.5645350859.

The spelling of 648482650 in words is "six hundred forty-eight million, four hundred eighty-two thousand, six hundred fifty".