16385425 has 24 divisors (see below), whose sum is σ = 23460800. Its totient is φ = 11119680.

The previous prime is 16385423. The next prime is 16385437. The reversal of 16385425 is 52458361.

It is not a de Polignac number, because 16385425 - 2¹ = 16385423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16385423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18646 + ... + 19504.

Almost surely, 2^16385425 is an apocalyptic number.

It is an amenable number.

16385425 is a deficient number, since it is larger than the sum of its proper divisors (7075375).

16385425 is a wasteful number, since it uses less digits than its factorization.

16385425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985 (or 980 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 16385425 is about 4047.8914264096. The cubic root of 16385425 is about 253.9915315341.

The spelling of 16385425 in words is "sixteen million, three hundred eighty-five thousand, four hundred twenty-five".