16039225 has 12 divisors (see below), whose sum is σ = 19998720. Its totient is φ = 12760400.

The previous prime is 16039223. The next prime is 16039229. The reversal of 16039225 is 52293061.

It is not a de Polignac number, because 16039225 - 2¹ = 16039223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16039193 and 16039202.

It is not an unprimeable number, because it can be changed into a prime (16039223) 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, 3096 + ... + 6454.

It is an arithmetic number, because the mean of its divisors is an integer number (1666560).

Almost surely, 2^16039225 is an apocalyptic number.

It is an amenable number.

16039225 is a deficient number, since it is larger than the sum of its proper divisors (3959495).

16039225 is a wasteful number, since it uses less digits than its factorization.

16039225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560 (or 3555 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 16039225 is about 4004.9001235986. The cubic root of 16039225 is about 252.1899602805.

The spelling of 16039225 in words is "sixteen million, thirty-nine thousand, two hundred twenty-five".