16451825 has 24 divisors (see below), whose sum is σ = 22165248. Its totient is φ = 12041280.

The previous prime is 16451819. The next prime is 16451837. The reversal of 16451825 is 52815461.

It is not a de Polignac number, because 16451825 - 2¹² = 16447729 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16451791 and 16451800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72362 + ... + 72588.

It is an arithmetic number, because the mean of its divisors is an integer number (923552).

Almost surely, 2^16451825 is an apocalyptic number.

It is an amenable number.

16451825 is a deficient number, since it is larger than the sum of its proper divisors (5713423).

16451825 is a wasteful number, since it uses less digits than its factorization.

16451825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 468 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 16451825 is about 4056.0849350081. The cubic root of 16451825 is about 254.3341593604.

The spelling of 16451825 in words is "sixteen million, four hundred fifty-one thousand, eight hundred twenty-five".