825881814 has 12 divisors (see below), whose sum is σ = 1789410636. Its totient is φ = 275293932.

The previous prime is 825881801. The next prime is 825881821. The reversal of 825881814 is 418188528.

It is a self number, because there is not a number n which added to its sum of digits gives 825881814.

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, 22941144 + ... + 22941179.

It is an arithmetic number, because the mean of its divisors is an integer number (149117553).

Almost surely, 2^825881814 is an apocalyptic number.

825881814 is an abundant number, since it is smaller than the sum of its proper divisors (963528822).

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

825881814 is a wasteful number, since it uses less digits than its factorization.

825881814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45882331 (or 45882328 counting only the distinct ones).

The product of its digits is 163840, while the sum is 45.

The square root of 825881814 is about 28738.1595444106. The cubic root of 825881814 is about 938.2227676509. Note that the first 3 decimals are identical.

The spelling of 825881814 in words is "eight hundred twenty-five million, eight hundred eighty-one thousand, eight hundred fourteen".