555680728 has 8 divisors (see below), whose sum is σ = 1041901380. Its totient is φ = 277840360.

The previous prime is 555680681. The next prime is 555680737. The reversal of 555680728 is 827086555.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 34730038 + ... + 34730053.

Almost surely, 2^555680728 is an apocalyptic number.

It is an amenable number.

555680728 is a deficient number, since it is larger than the sum of its proper divisors (486220652).

555680728 is a wasteful number, since it uses less digits than its factorization.

555680728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69460097 (or 69460093 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 46.

The square root of 555680728 is about 23572.8811985298. The cubic root of 555680728 is about 822.1324271659.

The spelling of 555680728 in words is "five hundred fifty-five million, six hundred eighty thousand, seven hundred twenty-eight".