556382087 has 2 divisors, whose sum is σ = 556382088. Its totient is φ = 556382086.

The previous prime is 556382063. The next prime is 556382089. The reversal of 556382087 is 780283655.

556382087 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 not a de Polignac number, because 556382087 - 2¹⁴ = 556365703 is a prime.

It is a super-2 number, since 2×556382087² = 619122053468951138, which contains 22 as substring.

Together with 556382089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556382089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278191043 + 278191044.

It is an arithmetic number, because the mean of its divisors is an integer number (278191044).

Almost surely, 2^556382087 is an apocalyptic number.

556382087 is a deficient number, since it is larger than the sum of its proper divisors (1).

556382087 is an equidigital number, since it uses as much as digits as its factorization.

556382087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 556382087 is about 23587.7529027248. The cubic root of 556382087 is about 822.4781697997.

The spelling of 556382087 in words is "five hundred fifty-six million, three hundred eighty-two thousand, eighty-seven".