16536005 has 4 divisors (see below), whose sum is σ = 19843212. Its totient is φ = 13228800.

The previous prime is 16535993. The next prime is 16536017. The reversal of 16536005 is 50063561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50063561 = 2221 ⋅22541.

It is an interprime number because it is at equal distance from previous prime (16535993) and next prime (16536017).

It can be written as a sum of positive squares in 2 ways, for example, as 2149156 + 14386849 = 1466^2 + 3793^2 .

It is not a de Polignac number, because 16536005 - 2⁸ = 16535749 is a prime.

It is a super-2 number, since 2×16536005² = 546878922720050, which contains 22 as substring.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1653596 + ... + 1653605.

It is an arithmetic number, because the mean of its divisors is an integer number (4960803).

Almost surely, 2^16536005 is an apocalyptic number.

It is an amenable number.

16536005 is a deficient number, since it is larger than the sum of its proper divisors (3307207).

16536005 is an equidigital number, since it uses as much as digits as its factorization.

16536005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307206.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 16536005 is about 4066.4486963443. The cubic root of 16536005 is about 254.7672103369.

Adding to 16536005 its reverse (50063561), we get a palindrome (66599566).

The spelling of 16536005 in words is "sixteen million, five hundred thirty-six thousand, five".