16825625 has 10 divisors (see below), whose sum is σ = 21026082. Its totient is φ = 13460000.

The previous prime is 16825619. The next prime is 16825637. The reversal of 16825625 is 52652861.

It can be written as a sum of positive squares in 5 ways, for example, as 1607824 + 15217801 = 1268^2 + 3901^2 .

It is not a de Polignac number, because 16825625 - 2¹² = 16821529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12836 + ... + 14085.

Almost surely, 2^16825625 is an apocalyptic number.

It is an amenable number.

16825625 is a deficient number, since it is larger than the sum of its proper divisors (4200457).

16825625 is an frugal number, since it uses more digits than its factorization.

16825625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26941 (or 26926 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 16825625 is about 4101.9050452198. The cubic root of 16825625 is about 256.2459844701.

The spelling of 16825625 in words is "sixteen million, eight hundred twenty-five thousand, six hundred twenty-five".