556109378 has 16 divisors (see below), whose sum is σ = 917167104. Its totient is φ = 250785360.

The previous prime is 556109339. The next prime is 556109381. The reversal of 556109378 is 873901655.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96725 + ... + 102312.

It is an arithmetic number, because the mean of its divisors is an integer number (57322944).

Almost surely, 2^556109378 is an apocalyptic number.

556109378 is a deficient number, since it is larger than the sum of its proper divisors (361057726).

556109378 is a wasteful number, since it uses less digits than its factorization.

556109378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199177.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 556109378 is about 23581.9714612668. The cubic root of 556109378 is about 822.3437694415.

The spelling of 556109378 in words is "five hundred fifty-six million, one hundred nine thousand, three hundred seventy-eight".