825220912 has 40 divisors (see below), whose sum is σ = 1641797696. Its totient is φ = 401599296.

The previous prime is 825220909. The next prime is 825220927. The reversal of 825220912 is 219022528.

It is a super-2 number, since 2×825220912² = 1361979107204223488, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 209263 + ... + 213169.

Almost surely, 2^825220912 is an apocalyptic number.

It is an amenable number.

825220912 is a deficient number, since it is larger than the sum of its proper divisors (816576784).

825220912 is a wasteful number, since it uses less digits than its factorization.

825220912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4265 (or 4259 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 825220912 is about 28726.6585596028. The cubic root of 825220912 is about 937.9724336972.

The spelling of 825220912 in words is "eight hundred twenty-five million, two hundred twenty thousand, nine hundred twelve".