16005425 has 12 divisors (see below), whose sum is σ = 19902000. Its totient is φ = 12768720.

The previous prime is 16005421. The next prime is 16005443. The reversal of 16005425 is 52450061.

16005425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16005425 - 2² = 16005421 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16005425.

It is not an unprimeable number, because it can be changed into a prime (16005421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11834 + ... + 13116.

It is an arithmetic number, because the mean of its divisors is an integer number (1658500).

Almost surely, 2^16005425 is an apocalyptic number.

It is an amenable number.

16005425 is a deficient number, since it is larger than the sum of its proper divisors (3896575).

16005425 is a wasteful number, since it uses less digits than its factorization.

16005425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 16005425 is about 4000.6780675281. The cubic root of 16005425 is about 252.0126862262.

Adding to 16005425 its reverse (52450061), we get a palindrome (68455486).

The spelling of 16005425 in words is "sixteen million, five thousand, four hundred twenty-five".