13043525505 has 16 divisors (see below), whose sum is σ = 20878228224. Its totient is φ = 6953684480.

The previous prime is 13043525503. The next prime is 13043525513. The reversal of 13043525505 is 50552534031.

It is a happy number.

It is not a de Polignac number, because 13043525505 - 2¹ = 13043525503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13043525501) 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, 140976 + ... + 214385.

It is an arithmetic number, because the mean of its divisors is an integer number (1304889264).

Almost surely, 2^13043525505 is an apocalyptic number.

13043525505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13043525505 is a deficient number, since it is larger than the sum of its proper divisors (7834702719).

13043525505 is a wasteful number, since it uses less digits than its factorization.

13043525505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357816.

The product of its (nonzero) digits is 45000, while the sum is 33.

The spelling of 13043525505 in words is "thirteen billion, forty-three million, five hundred twenty-five thousand, five hundred five".