16705625 has 10 divisors (see below), whose sum is σ = 20876130. Its totient is φ = 13364000.

The previous prime is 16705609. The next prime is 16705627. The reversal of 16705625 is 52650761.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 5442889 + 11262736 = 2333^2 + 3356^2 .

It is not a de Polignac number, because 16705625 - 2⁴ = 16705609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16705591 and 16705600.

It is not an unprimeable number, because it can be changed into a prime (16705627) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12740 + ... + 13989.

It is an arithmetic number, because the mean of its divisors is an integer number (2087613).

Almost surely, 2^16705625 is an apocalyptic number.

It is an amenable number.

16705625 is a deficient number, since it is larger than the sum of its proper divisors (4170505).

16705625 is an frugal number, since it uses more digits than its factorization.

16705625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26749 (or 26734 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 16705625 is about 4087.2515214995. The cubic root of 16705625 is about 255.6353501786.

The spelling of 16705625 in words is "sixteen million, seven hundred five thousand, six hundred twenty-five".