556845685 has 8 divisors (see below), whose sum is σ = 728961696. Its totient is φ = 404978640.

The previous prime is 556845661. The next prime is 556845721. The reversal of 556845685 is 586548655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 556845685 - 2⁹ = 556845173 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 5062179 + ... + 5062288.

It is an arithmetic number, because the mean of its divisors is an integer number (91120212).

Almost surely, 2^556845685 is an apocalyptic number.

556845685 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

556845685 is a deficient number, since it is larger than the sum of its proper divisors (172116011).

556845685 is a wasteful number, since it uses less digits than its factorization.

556845685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10124483.

The product of its digits is 5760000, while the sum is 52.

The square root of 556845685 is about 23597.5779477471. The cubic root of 556845685 is about 822.7065460590.

The spelling of 556845685 in words is "five hundred fifty-six million, eight hundred forty-five thousand, six hundred eighty-five".