556956011 has 2 divisors, whose sum is σ = 556956012. Its totient is φ = 556956010.

The previous prime is 556955999. The next prime is 556956019. The reversal of 556956011 is 110659655.

It is a happy number.

556956011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556956011 is a prime.

It is not a weakly prime, because it can be changed into another prime (556956019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278478005 + 278478006.

It is an arithmetic number, because the mean of its divisors is an integer number (278478006).

Almost surely, 2^556956011 is an apocalyptic number.

556956011 is a deficient number, since it is larger than the sum of its proper divisors (1).

556956011 is an equidigital number, since it uses as much as digits as its factorization.

556956011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 556956011 is about 23599.9154871368. The cubic root of 556956011 is about 822.7608758498.

The spelling of 556956011 in words is "five hundred fifty-six million, nine hundred fifty-six thousand, eleven".