16525330 has 16 divisors (see below), whose sum is σ = 30438144. Its totient is φ = 6456240.

The previous prime is 16525319. The next prime is 16525361. The reversal of 16525330 is 3352561.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16525295 and 16525304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18786 + ... + 19645.

It is an arithmetic number, because the mean of its divisors is an integer number (1902384).

Almost surely, 2^16525330 is an apocalyptic number.

16525330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16525330 is a deficient number, since it is larger than the sum of its proper divisors (13912814).

16525330 is a wasteful number, since it uses less digits than its factorization.

16525330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38481.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 16525330 is about 4065.1359140870. The cubic root of 16525330 is about 254.7123759435.

Adding to 16525330 its reverse (3352561), we get a palindrome (19877891).

The spelling of 16525330 in words is "sixteen million, five hundred twenty-five thousand, three hundred thirty".