13508125 has 10 divisors (see below), whose sum is σ = 16880534. Its totient is φ = 10806000.

The previous prime is 13508119. The next prime is 13508137. The reversal of 13508125 is 52180531.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 1159929 + 12348196 = 1077^2 + 3514^2 .

It is not a de Polignac number, because 13508125 - 2¹³ = 13499933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13508125.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 10182 + ... + 11431.

Almost surely, 2^13508125 is an apocalyptic number.

It is an amenable number.

13508125 is a deficient number, since it is larger than the sum of its proper divisors (3372409).

13508125 is an frugal number, since it uses more digits than its factorization.

13508125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21633 (or 21618 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 13508125 is about 3675.3401203154. The cubic root of 13508125 is about 238.1579172283.

Adding to 13508125 its reverse (52180531), we get a palindrome (65688656).

The spelling of 13508125 in words is "thirteen million, five hundred eight thousand, one hundred twenty-five".