16625039 has 4 divisors (see below), whose sum is σ = 16642080. Its totient is φ = 16608000.

The previous prime is 16625029. The next prime is 16625053. The reversal of 16625039 is 93052661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93052661 = 13 ⋅7157897.

It is a cyclic number.

It is not a de Polignac number, because 16625039 - 2⁴ = 16625023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16624996 and 16625014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16625009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6962 + ... + 9039.

It is an arithmetic number, because the mean of its divisors is an integer number (4160520).

Almost surely, 2^16625039 is an apocalyptic number.

16625039 is a deficient number, since it is larger than the sum of its proper divisors (17041).

16625039 is a wasteful number, since it uses less digits than its factorization.

16625039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17040.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 16625039 is about 4077.3813900591. The cubic root of 16625039 is about 255.2236356731.

The spelling of 16625039 in words is "sixteen million, six hundred twenty-five thousand, thirty-nine".