13525745 has 8 divisors (see below), whose sum is σ = 16790760. Its totient is φ = 10447360.

The previous prime is 13525723. The next prime is 13525747. The reversal of 13525745 is 54752531.

It can be written as a sum of positive squares in 4 ways, for example, as 5271616 + 8254129 = 2296^2 + 2873^2 .

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

It is not a de Polignac number, because 13525745 - 2²⁰ = 12477169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13525747) 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, 46496 + ... + 46785.

It is an arithmetic number, because the mean of its divisors is an integer number (2098845).

Almost surely, 2^13525745 is an apocalyptic number.

It is an amenable number.

13525745 is a deficient number, since it is larger than the sum of its proper divisors (3265015).

13525745 is an equidigital number, since it uses as much as digits as its factorization.

13525745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93315.

The product of its digits is 21000, while the sum is 32.

The square root of 13525745 is about 3677.7363962090. The cubic root of 13525745 is about 238.2614233096.

The spelling of 13525745 in words is "thirteen million, five hundred twenty-five thousand, seven hundred forty-five".