1005550005563 has 2 divisors, whose sum is σ = 1005550005564. Its totient is φ = 1005550005562.

The previous prime is 1005550005461. The next prime is 1005550005617. The reversal of 1005550005563 is 3655000555001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005550005563 is a prime.

It is a super-2 number, since 2×1005550005563² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1005550005263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502775002781 + 502775002782.

It is an arithmetic number, because the mean of its divisors is an integer number (502775002782).

Almost surely, 2^{1005550005563} is an apocalyptic number.

1005550005563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005550005563 is an equidigital number, since it uses as much as digits as its factorization.

1005550005563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56250, while the sum is 35.

The spelling of 1005550005563 in words is "one trillion, five billion, five hundred fifty million, five thousand, five hundred sixty-three".