13521455005 has 8 divisors (see below), whose sum is σ = 16260945624. Its totient is φ = 10793697600.

The previous prime is 13521454997. The next prime is 13521455011. The reversal of 13521455005 is 50055412531.

It can be written as a sum of positive squares in 4 ways, for example, as 4232543364 + 9288911641 = 65058^2 + 96379^2 .

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

It is not a de Polignac number, because 13521455005 - 2³ = 13521454997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2930766 + ... + 2935375.

It is an arithmetic number, because the mean of its divisors is an integer number (2032618203).

Almost surely, 2^13521455005 is an apocalyptic number.

It is an amenable number.

13521455005 is a deficient number, since it is larger than the sum of its proper divisors (2739490619).

13521455005 is an equidigital number, since it uses as much as digits as its factorization.

13521455005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5866607.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 13521455005 its reverse (50055412531), we get a palindrome (63576867536).

The spelling of 13521455005 in words is "thirteen billion, five hundred twenty-one million, four hundred fifty-five thousand, five".