13853551 has 2 divisors, whose sum is σ = 13853552. Its totient is φ = 13853550.

The previous prime is 13853549. The next prime is 13853557. The reversal of 13853551 is 15535831.

It is a weak prime.

It is an emirp because it is prime and its reverse (15535831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13853551 - 2¹ = 13853549 is a prime.

Together with 13853549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13853557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6926775 + 6926776.

It is an arithmetic number, because the mean of its divisors is an integer number (6926776).

Almost surely, 2^13853551 is an apocalyptic number.

13853551 is a deficient number, since it is larger than the sum of its proper divisors (1).

13853551 is an equidigital number, since it uses as much as digits as its factorization.

13853551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 31.

The square root of 13853551 is about 3722.0358676402. The cubic root of 13853551 is about 240.1708910203.

The spelling of 13853551 in words is "thirteen million, eight hundred fifty-three thousand, five hundred fifty-one".