16610525 has 6 divisors (see below), whose sum is σ = 20597082. Its totient is φ = 13288400.

The previous prime is 16610519. The next prime is 16610537. The reversal of 16610525 is 52501661.

It can be written as a sum of positive squares in 3 ways, for example, as 5707321 + 10903204 = 2389^2 + 3302^2 .

It is not a de Polignac number, because 16610525 - 2⁴ = 16610509 is a prime.

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 = 16610494 and 16610503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 332186 + ... + 332235.

It is an arithmetic number, because the mean of its divisors is an integer number (3432847).

Almost surely, 2^16610525 is an apocalyptic number.

It is an amenable number.

16610525 is a deficient number, since it is larger than the sum of its proper divisors (3986557).

16610525 is an equidigital number, since it uses as much as digits as its factorization.

16610525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664431 (or 664426 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 16610525 is about 4075.6011826478. The cubic root of 16610525 is about 255.1493422263.

The spelling of 16610525 in words is "sixteen million, six hundred ten thousand, five hundred twenty-five".