13553493 has 16 divisors (see below), whose sum is σ = 18712512. Its totient is φ = 8720000.

The previous prime is 13553467. The next prime is 13553503. The reversal of 13553493 is 39435531.

It is a cyclic number.

It is not a de Polignac number, because 13553493 - 2⁶ = 13553429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13553413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11878 + ... + 12968.

It is an arithmetic number, because the mean of its divisors is an integer number (1169532).

Almost surely, 2^13553493 is an apocalyptic number.

It is an amenable number.

13553493 is a deficient number, since it is larger than the sum of its proper divisors (5159019).

13553493 is a wasteful number, since it uses less digits than its factorization.

13553493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236.

The product of its digits is 24300, while the sum is 33.

The square root of 13553493 is about 3681.5068925645. The cubic root of 13553493 is about 238.4242427357.

It can be divided in two parts, 135 and 53493, that added together give a triangular number (53628 = T₃₂₇).

The spelling of 13553493 in words is "thirteen million, five hundred fifty-three thousand, four hundred ninety-three".