13525715 has 12 divisors (see below), whose sum is σ = 18881136. Its totient is φ = 9274608.

The previous prime is 13525711. The next prime is 13525717. The reversal of 13525715 is 51752531.

It is a happy number.

It is not a de Polignac number, because 13525715 - 2² = 13525711 is a prime.

It is a super-2 number, since 2×13525715² = 365889932522450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13525711) 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 11 ways as a sum of consecutive naturals, for example, 27359 + ... + 27848.

It is an arithmetic number, because the mean of its divisors is an integer number (1573428).

Almost surely, 2^13525715 is an apocalyptic number.

13525715 is a deficient number, since it is larger than the sum of its proper divisors (5355421).

13525715 is an equidigital number, since it uses as much as digits as its factorization.

13525715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55226 (or 55219 counting only the distinct ones).

The product of its digits is 5250, while the sum is 29.

The square root of 13525715 is about 3677.7323176109. The cubic root of 13525715 is about 238.2612471554.

The spelling of 13525715 in words is "thirteen million, five hundred twenty-five thousand, seven hundred fifteen".