13425424035521 has 16 divisors (see below), whose sum is σ = 13632278400000. Its totient is φ = 13219502352576.

The previous prime is 13425424035503. The next prime is 13425424035587. The reversal of 13425424035521 is 12553042452431.

13425424035521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13425424035521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13425424035721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244253240 + ... + 244308198.

It is an arithmetic number, because the mean of its divisors is an integer number (852017400000).

Almost surely, 2^{13425424035521} is an apocalyptic number.

It is an amenable number.

13425424035521 is a deficient number, since it is larger than the sum of its proper divisors (206854364479).

13425424035521 is an equidigital number, since it uses as much as digits as its factorization.

13425424035521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63376.

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 13425424035521 its reverse (12553042452431), we get a palindrome (25978466487952).

The spelling of 13425424035521 in words is "thirteen trillion, four hundred twenty-five billion, four hundred twenty-four million, thirty-five thousand, five hundred twenty-one".