102255563 has 2 divisors, whose sum is σ = 102255564. Its totient is φ = 102255562.

The previous prime is 102255551. The next prime is 102255583. The reversal of 102255563 is 365552201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102255563 - 2⁴ = 102255547 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102255533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51127781 + 51127782.

It is an arithmetic number, because the mean of its divisors is an integer number (51127782).

Almost surely, 2^102255563 is an apocalyptic number.

102255563 is a deficient number, since it is larger than the sum of its proper divisors (1).

102255563 is an equidigital number, since it uses as much as digits as its factorization.

102255563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 102255563 is about 10112.1492769836. The cubic root of 102255563 is about 467.6227677616.

The spelling of 102255563 in words is "one hundred two million, two hundred fifty-five thousand, five hundred sixty-three".