1056005563 has 2 divisors, whose sum is σ = 1056005564. Its totient is φ = 1056005562.

The previous prime is 1056005557. The next prime is 1056005591. The reversal of 1056005563 is 3655006501.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056005563 is a prime.

It is a super-2 number, since 2×1056005563² = 2230295498173893938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1056005063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528002781 + 528002782.

It is an arithmetic number, because the mean of its divisors is an integer number (528002782).

Almost surely, 2^1056005563 is an apocalyptic number.

1056005563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056005563 is an equidigital number, since it uses as much as digits as its factorization.

1056005563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 1056005563 is about 32496.2392131767. The cubic root of 1056005563 is about 1018.3304621113.

The spelling of 1056005563 in words is "one billion, fifty-six million, five thousand, five hundred sixty-three".