13503253 has 8 divisors (see below), whose sum is σ = 14346072. Its totient is φ = 12665856.

The previous prime is 13503251. The next prime is 13503283. The reversal of 13503253 is 35230531.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 815409 + 12687844 = 903^2 + 3562^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13503253 - 2¹ = 13503251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13503251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4551 + ... + 6907.

It is an arithmetic number, because the mean of its divisors is an integer number (1793259).

Almost surely, 2^13503253 is an apocalyptic number.

It is an amenable number.

13503253 is a deficient number, since it is larger than the sum of its proper divisors (842819).

13503253 is a wasteful number, since it uses less digits than its factorization.

13503253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 13503253 is about 3674.6772647404. The cubic root of 13503253 is about 238.1292815023.

Adding to 13503253 its reverse (35230531), we get a palindrome (48733784).

The spelling of 13503253 in words is "thirteen million, five hundred three thousand, two hundred fifty-three".