13524405421 has 8 divisors (see below), whose sum is σ = 14249439360. Its totient is φ = 12810789552.

The previous prime is 13524405407. The next prime is 13524405439. The reversal of 13524405421 is 12450442531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13524405421 - 2¹⁷ = 13524274349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13524405481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2852086 + ... + 2856823.

It is an arithmetic number, because the mean of its divisors is an integer number (1781179920).

Almost surely, 2^13524405421 is an apocalyptic number.

It is an amenable number.

13524405421 is a deficient number, since it is larger than the sum of its proper divisors (725033939).

13524405421 is a wasteful number, since it uses less digits than its factorization.

13524405421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5709035.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 13524405421 its reverse (12450442531), we get a palindrome (25974847952).

The spelling of 13524405421 in words is "thirteen billion, five hundred twenty-four million, four hundred five thousand, four hundred twenty-one".