13855003 has 2 divisors, whose sum is σ = 13855004. Its totient is φ = 13855002.

The previous prime is 13855001. The next prime is 13855019. The reversal of 13855003 is 30055831.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13855003 - 2¹ = 13855001 is a prime.

It is a super-2 number, since 2×13855003² = 383922216260018, which contains 22 as substring.

Together with 13855001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13855001) by changing a digit.

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, 6927501 + 6927502.

It is an arithmetic number, because the mean of its divisors is an integer number (6927502).

Almost surely, 2^13855003 is an apocalyptic number.

13855003 is a deficient number, since it is larger than the sum of its proper divisors (1).

13855003 is an equidigital number, since it uses as much as digits as its factorization.

13855003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 13855003 is about 3722.2309170711. The cubic root of 13855003 is about 240.1792815514.

The spelling of 13855003 in words is "thirteen million, eight hundred fifty-five thousand, three".