16050505 has 4 divisors (see below), whose sum is σ = 19260612. Its totient is φ = 12840400.

The previous prime is 16050491. The next prime is 16050511. The reversal of 16050505 is 50505061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7241481 + 8809024 = 2691^2 + 2968^2 .

It is not a de Polignac number, because 16050505 - 2²³ = 7661897 is a prime.

It is a Duffinian 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, 1605046 + ... + 1605055.

It is an arithmetic number, because the mean of its divisors is an integer number (4815153).

Almost surely, 2^16050505 is an apocalyptic number.

It is an amenable number.

16050505 is a deficient number, since it is larger than the sum of its proper divisors (3210107).

16050505 is an equidigital number, since it uses as much as digits as its factorization.

16050505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3210106.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 16050505 is about 4006.3081509040. The cubic root of 16050505 is about 252.2490661318.

Adding to 16050505 its reverse (50505061), we get a palindrome (66555566).

It can be divided in two parts, 1 and 6050505, that added together give a palindrome (6050506).

The spelling of 16050505 in words is "sixteen million, fifty thousand, five hundred five".