16042025 has 6 divisors (see below), whose sum is σ = 19892142. Its totient is φ = 12833600.

The previous prime is 16042021. The next prime is 16042031. The reversal of 16042025 is 52024061.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4999696 + 11042329 = 2236^2 + 3323^2 .

It is not a de Polignac number, because 16042025 - 2² = 16042021 is a prime.

It is a super-2 number, since 2×16042025² = 514693132201250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16041988 and 16042006.

It is not an unprimeable number, because it can be changed into a prime (16042021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 320816 + ... + 320865.

It is an arithmetic number, because the mean of its divisors is an integer number (3315357).

Almost surely, 2^16042025 is an apocalyptic number.

It is an amenable number.

16042025 is a deficient number, since it is larger than the sum of its proper divisors (3850117).

16042025 is an equidigital number, since it uses as much as digits as its factorization.

16042025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641691 (or 641686 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 16042025 is about 4005.2496801073. The cubic root of 16042025 is about 252.2046345307.

Adding to 16042025 its reverse (52024061), we get a palindrome (68066086).

The spelling of 16042025 in words is "sixteen million, forty-two thousand, twenty-five".