1563563465253 has 12 divisors (see below), whose sum is σ = 2258750725920. Its totient is φ = 1042250951976.

The previous prime is 1563563465251. The next prime is 1563563465263. The reversal of 1563563465253 is 3525643653651.

1563563465253 is a `hidden beast` number, since 1 + 5 + 6 + 356 + 34 + 6 + 5 + 253 = 666.

It is not a de Polignac number, because 1563563465253 - 2¹ = 1563563465251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1563563465253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1563563465251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10311513 + ... + 10462046.

It is an arithmetic number, because the mean of its divisors is an integer number (188229227160).

Almost surely, 2^{1563563465253} is an apocalyptic number.

It is an amenable number.

1563563465253 is a deficient number, since it is larger than the sum of its proper divisors (695187260667).

1563563465253 is a wasteful number, since it uses less digits than its factorization.

1563563465253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20781928 (or 20781925 counting only the distinct ones).

The product of its digits is 29160000, while the sum is 54.

The spelling of 1563563465253 in words is "one trillion, five hundred sixty-three billion, five hundred sixty-three million, four hundred sixty-five thousand, two hundred fifty-three".