1155563567 has 2 divisors, whose sum is σ = 1155563568. Its totient is φ = 1155563566.

The previous prime is 1155563509. The next prime is 1155563569. The reversal of 1155563567 is 7653655511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1155563567 is a prime.

Together with 1155563569, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155563569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577781783 + 577781784.

It is an arithmetic number, because the mean of its divisors is an integer number (577781784).

Almost surely, 2^1155563567 is an apocalyptic number.

1155563567 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155563567 is an equidigital number, since it uses as much as digits as its factorization.

1155563567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 472500, while the sum is 44.

The square root of 1155563567 is about 33993.5812617618. The cubic root of 1155563567 is about 1049.3763695118.

The spelling of 1155563567 in words is "one billion, one hundred fifty-five million, five hundred sixty-three thousand, five hundred sixty-seven".