16650525 has 12 divisors (see below), whose sum is σ = 27528992. Its totient is φ = 8880240.

The previous prime is 16650521. The next prime is 16650527. The reversal of 16650525 is 52505661.

It is not a de Polignac number, because 16650525 - 2² = 16650521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16650492 and 16650501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16650521) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 110929 + ... + 111078.

Almost surely, 2^16650525 is an apocalyptic number.

16650525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16650525 is a deficient number, since it is larger than the sum of its proper divisors (10878467).

16650525 is a wasteful number, since it uses less digits than its factorization.

16650525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222020 (or 222015 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 16650525 is about 4080.5054833930. The cubic root of 16650525 is about 255.3539874188.

The spelling of 16650525 in words is "sixteen million, six hundred fifty thousand, five hundred twenty-five".