16327505 has 8 divisors (see below), whose sum is σ = 19664424. Its totient is φ = 13014400.

The previous prime is 16327499. The next prime is 16327513. The reversal of 16327505 is 50572361.

16327505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 399424 + 15928081 = 632^2 + 3991^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16327505 - 2⁴ = 16327489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4406 + ... + 7215.

It is an arithmetic number, because the mean of its divisors is an integer number (2458053).

Almost surely, 2^16327505 is an apocalyptic number.

It is an amenable number.

16327505 is a deficient number, since it is larger than the sum of its proper divisors (3336919).

16327505 is a wasteful number, since it uses less digits than its factorization.

16327505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11907.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 16327505 is about 4040.7307507430. The cubic root of 16327505 is about 253.6919043233.

Adding to 16327505 its reverse (50572361), we get a palindrome (66899866).

The spelling of 16327505 in words is "sixteen million, three hundred twenty-seven thousand, five hundred five".