13025605544 has 64 divisors (see below), whose sum is σ = 28863267840. Its totient is φ = 5392788480.

The previous prime is 13025605499. The next prime is 13025605559. The reversal of 13025605544 is 44550652031.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1023122 + ... + 1035774.

It is an arithmetic number, because the mean of its divisors is an integer number (450988560).

Almost surely, 2^13025605544 is an apocalyptic number.

13025605544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13025605544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14431633920).

13025605544 is an abundant number, since it is smaller than the sum of its proper divisors (15837662296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13025605544 is a wasteful number, since it uses less digits than its factorization.

13025605544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13290 (or 13286 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 13025605544 in words is "thirteen billion, twenty-five million, six hundred five thousand, five hundred forty-four".