825885420 has 24 divisors (see below), whose sum is σ = 2312479344. Its totient is φ = 220236096.

The previous prime is 825885413. The next prime is 825885421. The reversal of 825885420 is 24588528.

It is not an unprimeable number, because it can be changed into a prime (825885421) 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 7 ways as a sum of consecutive naturals, for example, 6882319 + ... + 6882438.

It is an arithmetic number, because the mean of its divisors is an integer number (96353306).

Almost surely, 2^825885420 is an apocalyptic number.

It is an amenable number.

825885420 is an abundant number, since it is smaller than the sum of its proper divisors (1486593924).

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

825885420 is a wasteful number, since it uses less digits than its factorization.

825885420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13764769 (or 13764767 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 42.

The square root of 825885420 is about 28738.2222832241. Note that the first 4 decimals coincide. The cubic root of 825885420 is about 938.2241331515.

The spelling of 825885420 in words is "eight hundred twenty-five million, eight hundred eighty-five thousand, four hundred twenty".