13563113425 has 12 divisors (see below), whose sum is σ = 17703432880. Its totient is φ = 10279411920.

The previous prime is 13563113411. The next prime is 13563113429. The reversal of 13563113425 is 52431136531.

It is not a de Polignac number, because 13563113425 - 2⁷ = 13563113297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13563113429) 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, 14276487 + ... + 14277436.

Almost surely, 2^13563113425 is an apocalyptic number.

It is an amenable number.

13563113425 is a deficient number, since it is larger than the sum of its proper divisors (4140319455).

13563113425 is a wasteful number, since it uses less digits than its factorization.

13563113425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28553952 (or 28553947 counting only the distinct ones).

The product of its digits is 32400, while the sum is 34.

Adding to 13563113425 its reverse (52431136531), we get a palindrome (65994249956).

The spelling of 13563113425 in words is "thirteen billion, five hundred sixty-three million, one hundred thirteen thousand, four hundred twenty-five".