649808552 has 16 divisors (see below), whose sum is σ = 1218661440. Its totient is φ = 324832176.

The previous prime is 649808513. The next prime is 649808557. The reversal of 649808552 is 255808946.

649808552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×649808552³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 649808497 and 649808506.

It is not an unprimeable number, because it can be changed into a prime (649808557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66833 + ... + 75935.

It is an arithmetic number, because the mean of its divisors is an integer number (76166340).

Almost surely, 2^649808552 is an apocalyptic number.

It is an amenable number.

649808552 is a deficient number, since it is larger than the sum of its proper divisors (568852888).

649808552 is a wasteful number, since it uses less digits than its factorization.

649808552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18032 (or 18028 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 47.

The square root of 649808552 is about 25491.3426872733. The cubic root of 649808552 is about 866.1540509672.

The spelling of 649808552 in words is "six hundred forty-nine million, eight hundred eight thousand, five hundred fifty-two".