605551648 has 24 divisors (see below), whose sum is σ = 1283886828. Its totient is φ = 279485184.

The previous prime is 605551637. The next prime is 605551663. The reversal of 605551648 is 846155506.

It can be written as a sum of positive squares in 2 ways, for example, as 601819024 + 3732624 = 24532^2 + 1932^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 605551648.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 727411 + ... + 728242.

Almost surely, 2^605551648 is an apocalyptic number.

It is an amenable number.

605551648 is an abundant number, since it is smaller than the sum of its proper divisors (678335180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

605551648 is a wasteful number, since it uses less digits than its factorization.

605551648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455676 (or 1455668 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 605551648 is about 24607.9590376772. The cubic root of 605551648 is about 846.0260393224.

The spelling of 605551648 in words is "six hundred five million, five hundred fifty-one thousand, six hundred forty-eight".