650255728 has 20 divisors (see below), whose sum is σ = 1283643288. Its totient is φ = 318992960.

The previous prime is 650255693. The next prime is 650255743. The reversal of 650255728 is 827552056.

It is a congruent number.

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, 382558 + ... + 384253.

Almost surely, 2^650255728 is an apocalyptic number.

It is an amenable number.

650255728 is a deficient number, since it is larger than the sum of its proper divisors (633387560).

650255728 is a wasteful number, since it uses less digits than its factorization.

650255728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766872 (or 766866 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 650255728 is about 25500.1123134782. The cubic root of 650255728 is about 866.3526912637.

The spelling of 650255728 in words is "six hundred fifty million, two hundred fifty-five thousand, seven hundred twenty-eight".