1056203563 has 2 divisors, whose sum is σ = 1056203564. Its totient is φ = 1056203562.

The previous prime is 1056203543. The next prime is 1056203623. The reversal of 1056203563 is 3653026501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1056203563 - 2⁵ = 1056203531 is a prime.

It is a super-2 number, since 2×1056203563² = 2231131932987789938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1056203543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528101781 + 528101782.

It is an arithmetic number, because the mean of its divisors is an integer number (528101782).

Almost surely, 2^1056203563 is an apocalyptic number.

1056203563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056203563 is an equidigital number, since it uses as much as digits as its factorization.

1056203563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 1056203563 is about 32499.2855767631. The cubic root of 1056203563 is about 1018.3941034525.

The spelling of 1056203563 in words is "one billion, fifty-six million, two hundred three thousand, five hundred sixty-three".