16525216 has 24 divisors (see below), whose sum is σ = 32862564. Its totient is φ = 8179200.

The previous prime is 16525183. The next prime is 16525237. The reversal of 16525216 is 61252561.

16525216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16483600 + 41616 = 4060^2 + 204^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676 + ... + 5788.

Almost surely, 2^16525216 is an apocalyptic number.

16525216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16525216 is a deficient number, since it is larger than the sum of its proper divisors (16337348).

16525216 is a wasteful number, since it uses less digits than its factorization.

16525216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5224 (or 5216 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 16525216 is about 4065.1218923914. The cubic root of 16525216 is about 254.7117902310.

Adding to 16525216 its reverse (61252561), we get a palindrome (77777777).

The spelling of 16525216 in words is "sixteen million, five hundred twenty-five thousand, two hundred sixteen".