16813625 has 16 divisors (see below), whose sum is σ = 21665280. Its totient is φ = 13014000.

The previous prime is 16813553. The next prime is 16813631. The reversal of 16813625 is 52631861.

It is a happy number.

It is not a de Polignac number, because 16813625 - 2¹⁶ = 16748089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16813591 and 16813600.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1706 + ... + 6044.

It is an arithmetic number, because the mean of its divisors is an integer number (1354080).

Almost surely, 2^16813625 is an apocalyptic number.

It is an amenable number.

16813625 is a deficient number, since it is larger than the sum of its proper divisors (4851655).

16813625 is an equidigital number, since it uses as much as digits as its factorization.

16813625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385 (or 4375 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 16813625 is about 4100.4420493405. The cubic root of 16813625 is about 256.1850519516.

The spelling of 16813625 in words is "sixteen million, eight hundred thirteen thousand, six hundred twenty-five".