13563042525 has 36 divisors (see below), whose sum is σ = 24507943668. Its totient is φ = 7169594880.

The previous prime is 13563042511. The next prime is 13563042551. The reversal of 13563042525 is 52524036531.

13563042525 is a `hidden beast` number, since 1 + 3 + 563 + 0 + 42 + 52 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 3398773401 + 10164269124 = 58299^2 + 100818^2 .

It is not a de Polignac number, because 13563042525 - 2⁶ = 13563042461 is a prime.

It is a super-2 number, since 2×13563042525² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13563042525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 241302 + ... + 292151.

It is an arithmetic number, because the mean of its divisors is an integer number (680776213).

Almost surely, 2^13563042525 is an apocalyptic number.

13563042525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13563042525 is a deficient number, since it is larger than the sum of its proper divisors (10944901143).

13563042525 is a wasteful number, since it uses less digits than its factorization.

13563042525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533582 (or 533574 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 13563042525 in words is "thirteen billion, five hundred sixty-three million, forty-two thousand, five hundred twenty-five".