1563425543 has 2 divisors, whose sum is σ = 1563425544. Its totient is φ = 1563425542.

The previous prime is 1563425497. The next prime is 1563425557. The reversal of 1563425543 is 3455243651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1563425543 - 2²² = 1559231239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1563425497 and 1563425506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1563427543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781712771 + 781712772.

It is an arithmetic number, because the mean of its divisors is an integer number (781712772).

Almost surely, 2^1563425543 is an apocalyptic number.

1563425543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1563425543 is an equidigital number, since it uses as much as digits as its factorization.

1563425543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 38.

The square root of 1563425543 is about 39540.1763147308. The cubic root of 1563425543 is about 1160.6262826482.

The spelling of 1563425543 in words is "one billion, five hundred sixty-three million, four hundred twenty-five thousand, five hundred forty-three".