13553087 has 4 divisors (see below), whose sum is σ = 13560456. Its totient is φ = 13545720.

The previous prime is 13553081. The next prime is 13553093. The reversal of 13553087 is 78035531.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (13553081) and next prime (13553093).

It is a cyclic number.

It is not a de Polignac number, because 13553087 - 2¹⁴ = 13536703 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 (13553081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637 + ... + 5457.

It is an arithmetic number, because the mean of its divisors is an integer number (3390114).

Almost surely, 2^13553087 is an apocalyptic number.

13553087 is a deficient number, since it is larger than the sum of its proper divisors (7369).

13553087 is an equidigital number, since it uses as much as digits as its factorization.

13553087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7368.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 13553087 is about 3681.4517516871. The cubic root of 13553087 is about 238.4218620159.

The spelling of 13553087 in words is "thirteen million, five hundred fifty-three thousand, eighty-seven".