16452505 has 8 divisors (see below), whose sum is σ = 19830600. Its totient is φ = 13103616.

The previous prime is 16452503. The next prime is 16452523. The reversal of 16452505 is 50525461.

It can be written as a sum of positive squares in 4 ways, for example, as 5779216 + 10673289 = 2404^2 + 3267^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16452505 - 2¹ = 16452503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16452503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6040 + ... + 8329.

It is an arithmetic number, because the mean of its divisors is an integer number (2478825).

Almost surely, 2^16452505 is an apocalyptic number.

It is an amenable number.

16452505 is a deficient number, since it is larger than the sum of its proper divisors (3378095).

16452505 is a wasteful number, since it uses less digits than its factorization.

16452505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14603.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 16452505 is about 4056.1687588166. The cubic root of 16452505 is about 254.3376634264.

Adding to 16452505 its reverse (50525461), we get a palindrome (66977966).

The spelling of 16452505 in words is "sixteen million, four hundred fifty-two thousand, five hundred five".