1040555563 has 2 divisors, whose sum is σ = 1040555564. Its totient is φ = 1040555562.

The previous prime is 1040555561. The next prime is 1040555599. The reversal of 1040555563 is 3655550401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1040555563 - 2¹ = 1040555561 is a prime.

Together with 1040555561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1040555561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520277781 + 520277782.

It is an arithmetic number, because the mean of its divisors is an integer number (520277782).

Almost surely, 2^1040555563 is an apocalyptic number.

1040555563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040555563 is an equidigital number, since it uses as much as digits as its factorization.

1040555563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 1040555563 is about 32257.6434818168. The cubic root of 1040555563 is about 1013.3397799995.

The spelling of 1040555563 in words is "one billion, forty million, five hundred fifty-five thousand, five hundred sixty-three".