13525542243563 has 16 divisors (see below), whose sum is σ = 15643777416960. Its totient is φ = 11454583701600.

The previous prime is 13525542243547. The next prime is 13525542243589. The reversal of 13525542243563 is 36534224552531.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13525542243563 - 2⁴ = 13525542243547 is a prime.

It is a super-2 number, since 2×13525542243563² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13525542243263) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31994753 + ... + 32414738.

It is an arithmetic number, because the mean of its divisors is an integer number (977736088560).

Almost surely, 2^{13525542243563} is an apocalyptic number.

13525542243563 is a deficient number, since it is larger than the sum of its proper divisors (2118235173397).

13525542243563 is a wasteful number, since it uses less digits than its factorization.

13525542243563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64409858.

The product of its digits is 12960000, while the sum is 50.

The spelling of 13525542243563 in words is "thirteen trillion, five hundred twenty-five billion, five hundred forty-two million, two hundred forty-three thousand, five hundred sixty-three".