648455606 has 24 divisors (see below), whose sum is σ = 1026323760. Its totient is φ = 307231056.

The previous prime is 648455593. The next prime is 648455623. The reversal of 648455606 is 606554846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112511 + ... + 118133.

It is an arithmetic number, because the mean of its divisors is an integer number (42763490).

Almost surely, 2^648455606 is an apocalyptic number.

648455606 is a deficient number, since it is larger than the sum of its proper divisors (377868154).

648455606 is a wasteful number, since it uses less digits than its factorization.

648455606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780 (or 5757 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The square root of 648455606 is about 25464.7914972811. The cubic root of 648455606 is about 865.5525025601.

The spelling of 648455606 in words is "six hundred forty-eight million, four hundred fifty-five thousand, six hundred six".