1042551563 has 2 divisors, whose sum is σ = 1042551564. Its totient is φ = 1042551562.

The previous prime is 1042551547. The next prime is 1042551599. The reversal of 1042551563 is 3651552401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1042551563 - 2⁴ = 1042551547 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1042551533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521275781 + 521275782.

It is an arithmetic number, because the mean of its divisors is an integer number (521275782).

Almost surely, 2^1042551563 is an apocalyptic number.

1042551563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042551563 is an equidigital number, since it uses as much as digits as its factorization.

1042551563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1042551563 is about 32288.5670632811. The cubic root of 1042551563 is about 1013.9872976583.

The spelling of 1042551563 in words is "one billion, forty-two million, five hundred fifty-one thousand, five hundred sixty-three".