180825636 has 12 divisors (see below), whose sum is σ = 421926512. Its totient is φ = 60275208.

The previous prime is 180825629. The next prime is 180825637. The reversal of 180825636 is 636528081.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 180825594 and 180825603.

It is not an unprimeable number, because it can be changed into a prime (180825637) 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 3 ways as a sum of consecutive naturals, for example, 7534390 + ... + 7534413.

Almost surely, 2^180825636 is an apocalyptic number.

It is an amenable number.

180825636 is an abundant number, since it is smaller than the sum of its proper divisors (241100876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180825636 is a wasteful number, since it uses less digits than its factorization.

180825636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15068810 (or 15068808 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 180825636 is about 13447.1422986447. The cubic root of 180825636 is about 565.4835821216.

The spelling of 180825636 in words is "one hundred eighty million, eight hundred twenty-five thousand, six hundred thirty-six".