13552287 has 8 divisors (see below), whose sum is σ = 20651136. Its totient is φ = 7744152.

The previous prime is 13552277. The next prime is 13552303. The reversal of 13552287 is 78225531.

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

It is not a de Polignac number, because 13552287 - 2⁴ = 13552271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13552207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322653 + ... + 322694.

It is an arithmetic number, because the mean of its divisors is an integer number (2581392).

Almost surely, 2^13552287 is an apocalyptic number.

13552287 is a deficient number, since it is larger than the sum of its proper divisors (7098849).

13552287 is an equidigital number, since it uses as much as digits as its factorization.

13552287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645357.

The product of its digits is 16800, while the sum is 33.

The square root of 13552287 is about 3681.3430972948. The cubic root of 13552287 is about 238.4171708032.

The spelling of 13552287 in words is "thirteen million, five hundred fifty-two thousand, two hundred eighty-seven".