13553894 has 4 divisors (see below), whose sum is σ = 20330844. Its totient is φ = 6776946.

The previous prime is 13553867. The next prime is 13553909. The reversal of 13553894 is 49835531.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3388472 + ... + 3388475.

It is an arithmetic number, because the mean of its divisors is an integer number (5082711).

Almost surely, 2^13553894 is an apocalyptic number.

13553894 is a deficient number, since it is larger than the sum of its proper divisors (6776950).

13553894 is an equidigital number, since it uses as much as digits as its factorization.

13553894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776949.

The product of its digits is 64800, while the sum is 38.

The square root of 13553894 is about 3681.5613535564. The cubic root of 13553894 is about 238.4265940897.

The spelling of 13553894 in words is "thirteen million, five hundred fifty-three thousand, eight hundred ninety-four".