13523253505 has 8 divisors (see below), whose sum is σ = 16251393024. Its totient is φ = 10802943600.

The previous prime is 13523253493. The next prime is 13523253509. The reversal of 13523253505 is 50535232531.

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

It is not a de Polignac number, because 13523253505 - 2⁷ = 13523253377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13523253509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1953601 + ... + 1960510.

It is an arithmetic number, because the mean of its divisors is an integer number (2031424128).

Almost surely, 2^13523253505 is an apocalyptic number.

It is an amenable number.

13523253505 is a deficient number, since it is larger than the sum of its proper divisors (2728139519).

13523253505 is an equidigital number, since it uses as much as digits as its factorization.

13523253505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914807.

The product of its (nonzero) digits is 67500, while the sum is 34.

The spelling of 13523253505 in words is "thirteen billion, five hundred twenty-three million, two hundred fifty-three thousand, five hundred five".