556265779 has 2 divisors, whose sum is σ = 556265780. Its totient is φ = 556265778.

The previous prime is 556265761. The next prime is 556265813. The reversal of 556265779 is 977562655.

556265779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556265779 is a prime.

It is not a weakly prime, because it can be changed into another prime (556265719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278132889 + 278132890.

It is an arithmetic number, because the mean of its divisors is an integer number (278132890).

Almost surely, 2^556265779 is an apocalyptic number.

556265779 is a deficient number, since it is larger than the sum of its proper divisors (1).

556265779 is an equidigital number, since it uses as much as digits as its factorization.

556265779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3969000, while the sum is 52.

The square root of 556265779 is about 23585.2873419002. The cubic root of 556265779 is about 822.4208545962.

The spelling of 556265779 in words is "five hundred fifty-six million, two hundred sixty-five thousand, seven hundred seventy-nine".