556653385 has 4 divisors (see below), whose sum is σ = 667984068. Its totient is φ = 445322704.

The previous prime is 556653379. The next prime is 556653401. The reversal of 556653385 is 583356655.

556653385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 217946169 + 338707216 = 14763^2 + 18404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556653385 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55665334 + ... + 55665343.

It is an arithmetic number, because the mean of its divisors is an integer number (166996017).

Almost surely, 2^556653385 is an apocalyptic number.

It is an amenable number.

556653385 is a deficient number, since it is larger than the sum of its proper divisors (111330683).

556653385 is a wasteful number, since it uses less digits than its factorization.

556653385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111330682.

The product of its digits is 1620000, while the sum is 46.

The square root of 556653385 is about 23593.5030251974. The cubic root of 556653385 is about 822.6118311987.

The spelling of 556653385 in words is "five hundred fifty-six million, six hundred fifty-three thousand, three hundred eighty-five".