8255563 has 2 divisors, whose sum is σ = 8255564. Its totient is φ = 8255562.

The previous prime is 8255561. The next prime is 8255567. The reversal of 8255563 is 3655528.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8255563 - 2¹ = 8255561 is a prime.

Together with 8255561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8255561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4127781 + 4127782.

It is an arithmetic number, because the mean of its divisors is an integer number (4127782).

Almost surely, 2^8255563 is an apocalyptic number.

8255563 is a deficient number, since it is larger than the sum of its proper divisors (1).

8255563 is an equidigital number, since it uses as much as digits as its factorization.

8255563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 34.

The square root of 8255563 is about 2873.2495540764. The cubic root of 8255563 is about 202.1074078332.

The spelling of 8255563 in words is "eight million, two hundred fifty-five thousand, five hundred sixty-three".