556068309 has 16 divisors (see below), whose sum is σ = 785213952. Its totient is φ = 349298928.

The previous prime is 556068299. The next prime is 556068313. The reversal of 556068309 is 903860655.

556068309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 556068309 - 2⁵ = 556068277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556068349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55519 + ... + 64764.

It is an arithmetic number, because the mean of its divisors is an integer number (49075872).

Almost surely, 2^556068309 is an apocalyptic number.

It is an amenable number.

556068309 is a deficient number, since it is larger than the sum of its proper divisors (229145643).

556068309 is a wasteful number, since it uses less digits than its factorization.

556068309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120376.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 556068309 is about 23581.1006740568. The cubic root of 556068309 is about 822.3235254217.

The spelling of 556068309 in words is "five hundred fifty-six million, sixty-eight thousand, three hundred nine".