825503020 has 24 divisors (see below), whose sum is σ = 1775839968. Its totient is φ = 322147200.

The previous prime is 825502969. The next prime is 825503131. The reversal of 825503020 is 20305528.

It is an unprimeable number.

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, 502536 + ... + 504175.

It is an arithmetic number, because the mean of its divisors is an integer number (73993332).

Almost surely, 2^825503020 is an apocalyptic number.

It is an amenable number.

825503020 is an abundant number, since it is smaller than the sum of its proper divisors (950336948).

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

825503020 is a wasteful number, since it uses less digits than its factorization.

825503020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006761 (or 1006759 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 825503020 is about 28731.5683525978. The cubic root of 825503020 is about 938.0793058395.

Adding to 825503020 its reverse (20305528), we get a palindrome (845808548).

The spelling of 825503020 in words is "eight hundred twenty-five million, five hundred three thousand, twenty".