13503535 has 4 divisors (see below), whose sum is σ = 16204248. Its totient is φ = 10802824.

The previous prime is 13503533. The next prime is 13503541. The reversal of 13503535 is 53530531.

It is a happy number.

13503535 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13503535 - 2¹ = 13503533 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 (13503533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1350349 + ... + 1350358.

It is an arithmetic number, because the mean of its divisors is an integer number (4051062).

Almost surely, 2^13503535 is an apocalyptic number.

13503535 is a deficient number, since it is larger than the sum of its proper divisors (2700713).

13503535 is an equidigital number, since it uses as much as digits as its factorization.

13503535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700712.

The product of its (nonzero) digits is 3375, while the sum is 25.

The square root of 13503535 is about 3674.7156352567. The cubic root of 13503535 is about 238.1309391767.

The spelling of 13503535 in words is "thirteen million, five hundred three thousand, five hundred thirty-five".