1563249453 has 16 divisors (see below), whose sum is σ = 2198385600. Its totient is φ = 985357440.

The previous prime is 1563249451. The next prime is 1563249481. The reversal of 1563249453 is 3549423651.

It is not a de Polignac number, because 1563249453 - 2¹ = 1563249451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563249451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2073 + ... + 55953.

It is an arithmetic number, because the mean of its divisors is an integer number (137399100).

Almost surely, 2^1563249453 is an apocalyptic number.

It is an amenable number.

1563249453 is a deficient number, since it is larger than the sum of its proper divisors (635136147).

1563249453 is a wasteful number, since it uses less digits than its factorization.

1563249453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54412.

The product of its digits is 388800, while the sum is 42.

The square root of 1563249453 is about 39537.9495295343. The cubic root of 1563249453 is about 1160.5827068910.

The spelling of 1563249453 in words is "one billion, five hundred sixty-three million, two hundred forty-nine thousand, four hundred fifty-three".