806055559 has 2 divisors, whose sum is σ = 806055560. Its totient is φ = 806055558.

The previous prime is 806055473. The next prime is 806055623. The reversal of 806055559 is 955550608.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 806055559 - 2⁷ = 806055431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806050559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403027779 + 403027780.

It is an arithmetic number, because the mean of its divisors is an integer number (403027780).

Almost surely, 2^806055559 is an apocalyptic number.

806055559 is a deficient number, since it is larger than the sum of its proper divisors (1).

806055559 is an equidigital number, since it uses as much as digits as its factorization.

806055559 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270000, while the sum is 43.

The square root of 806055559 is about 28391.1176074490. The cubic root of 806055559 is about 930.6541661025.

The spelling of 806055559 in words is "eight hundred six million, fifty-five thousand, five hundred fifty-nine".