825029892 has 54 divisors (see below), whose sum is σ = 2105863578. Its totient is φ = 272335104.

The previous prime is 825029861. The next prime is 825029899. The reversal of 825029892 is 298920528.

It can be written as a sum of positive squares in 3 ways, for example, as 525601476 + 299428416 = 22926^2 + 17304^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825029899) 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 17 ways as a sum of consecutive naturals, for example, 2016984 + ... + 2017392.

Almost surely, 2^825029892 is an apocalyptic number.

It is an amenable number.

825029892 is an abundant number, since it is smaller than the sum of its proper divisors (1280833686).

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

825029892 is a wasteful number, since it uses less digits than its factorization.

825029892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 825029892 is about 28723.3335809060. Note that the first 3 decimals coincide. The cubic root of 825029892 is about 937.9000549688.

The spelling of 825029892 in words is "eight hundred twenty-five million, twenty-nine thousand, eight hundred ninety-two".