16625906 has 16 divisors (see below), whose sum is σ = 27269568. Its totient is φ = 7539600.

The previous prime is 16625891. The next prime is 16625933. The reversal of 16625906 is 60952661.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15611 + ... + 16641.

It is an arithmetic number, because the mean of its divisors is an integer number (1704348).

Almost surely, 2^16625906 is an apocalyptic number.

16625906 is a deficient number, since it is larger than the sum of its proper divisors (10643662).

16625906 is a wasteful number, since it uses less digits than its factorization.

16625906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 16625906 is about 4077.4877069097. The cubic root of 16625906 is about 255.2280722551.

The spelling of 16625906 in words is "sixteen million, six hundred twenty-five thousand, nine hundred six".