1103955563 has 2 divisors, whose sum is σ = 1103955564. Its totient is φ = 1103955562.

The previous prime is 1103955509. The next prime is 1103955577. The reversal of 1103955563 is 3655593011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1103955563 - 2³⁰ = 30213739 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1103955263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551977781 + 551977782.

It is an arithmetic number, because the mean of its divisors is an integer number (551977782).

Almost surely, 2^1103955563 is an apocalyptic number.

1103955563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103955563 is an equidigital number, since it uses as much as digits as its factorization.

1103955563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60750, while the sum is 38.

The square root of 1103955563 is about 33225.8267466740. The cubic root of 1103955563 is about 1033.5159834491.

The spelling of 1103955563 in words is "one billion, one hundred three million, nine hundred fifty-five thousand, five hundred sixty-three".