2355555563 has 2 divisors, whose sum is σ = 2355555564. Its totient is φ = 2355555562.

The previous prime is 2355555497. The next prime is 2355555583. The reversal of 2355555563 is 3655555532.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2355555563 is a prime.

It is not a weakly prime, because it can be changed into another prime (2355555583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1177777781 + 1177777782.

It is an arithmetic number, because the mean of its divisors is an integer number (1177777782).

Almost surely, 2^2355555563 is an apocalyptic number.

2355555563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2355555563 is an equidigital number, since it uses as much as digits as its factorization.

2355555563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1687500, while the sum is 44.

The square root of 2355555563 is about 48534.0660052298. The cubic root of 2355555563 is about 1330.5497497422.

The spelling of 2355555563 in words is "two billion, three hundred fifty-five million, five hundred fifty-five thousand, five hundred sixty-three".