825518912 has 56 divisors (see below), whose sum is σ = 1750664520. Its totient is φ = 384860160.

The previous prime is 825518893. The next prime is 825518927. The reversal of 825518912 is 219815528.

It can be written as a sum of positive squares in 4 ways, for example, as 418447936 + 407070976 = 20456^2 + 20176^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 825518912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115112 + ... + 122072.

Almost surely, 2^825518912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 825518912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (875332260).

825518912 is an abundant number, since it is smaller than the sum of its proper divisors (925145608).

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

825518912 is a wasteful number, since it uses less digits than its factorization.

825518912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7099 (or 7089 counting only the distinct ones).

The product of its digits is 57600, while the sum is 41.

The square root of 825518912 is about 28731.8449111783. The cubic root of 825518912 is about 938.0853255472.

The spelling of 825518912 in words is "eight hundred twenty-five million, five hundred eighteen thousand, nine hundred twelve".