16545455 has 4 divisors (see below), whose sum is σ = 19854552. Its totient is φ = 13236360.

The previous prime is 16545443. The next prime is 16545467. The reversal of 16545455 is 55454561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55454561 = 17 ⋅3262033.

It is an interprime number because it is at equal distance from previous prime (16545443) and next prime (16545467).

It is not a de Polignac number, because 16545455 - 2¹⁰ = 16544431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1654541 + ... + 1654550.

It is an arithmetic number, because the mean of its divisors is an integer number (4963638).

Almost surely, 2^16545455 is an apocalyptic number.

16545455 is a deficient number, since it is larger than the sum of its proper divisors (3309097).

16545455 is an equidigital number, since it uses as much as digits as its factorization.

16545455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309096.

The product of its digits is 60000, while the sum is 35.

The square root of 16545455 is about 4067.6104779096. The cubic root of 16545455 is about 254.8157325699.

It can be divided in two parts, 1 and 6545455, that added together give a palindrome (6545456).

The spelling of 16545455 in words is "sixteen million, five hundred forty-five thousand, four hundred fifty-five".