13555473 has 4 divisors (see below), whose sum is σ = 18073968. Its totient is φ = 9036980.

The previous prime is 13555471. The next prime is 13555489. The reversal of 13555473 is 37455531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13555473 - 2¹ = 13555471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13555471) 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 in 3 ways as a sum of consecutive naturals, for example, 2259243 + ... + 2259248.

It is an arithmetic number, because the mean of its divisors is an integer number (4518492).

Almost surely, 2^13555473 is an apocalyptic number.

It is an amenable number.

13555473 is a deficient number, since it is larger than the sum of its proper divisors (4518495).

13555473 is an equidigital number, since it uses as much as digits as its factorization.

13555473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518494.

The product of its digits is 31500, while the sum is 33.

The square root of 13555473 is about 3681.7757943688. The cubic root of 13555473 is about 238.4358524616.

It can be divided in two parts, 13555 and 473, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 13555473 in words is "thirteen million, five hundred fifty-five thousand, four hundred seventy-three".