13531145325 has 24 divisors (see below), whose sum is σ = 23687466048. Its totient is φ = 6792103680.

The previous prime is 13531145311. The next prime is 13531145371. The reversal of 13531145325 is 52354113531.

It is not a de Polignac number, because 13531145325 - 2⁹ = 13531144813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5305057 + ... + 5307606.

It is an arithmetic number, because the mean of its divisors is an integer number (986977752).

Almost surely, 2^13531145325 is an apocalyptic number.

13531145325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13531145325 is a deficient number, since it is larger than the sum of its proper divisors (10156320723).

13531145325 is a wasteful number, since it uses less digits than its factorization.

13531145325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10612693 (or 10612688 counting only the distinct ones).

The product of its digits is 27000, while the sum is 33.

Adding to 13531145325 its reverse (52354113531), we get a palindrome (65885258856).

The spelling of 13531145325 in words is "thirteen billion, five hundred thirty-one million, one hundred forty-five thousand, three hundred twenty-five".