822427825 has 24 divisors (see below), whose sum is σ = 1081761120. Its totient is φ = 618508800.

The previous prime is 822427817. The next prime is 822427867. The reversal of 822427825 is 528724228.

It is not a de Polignac number, because 822427825 - 2³ = 822427817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55617 + ... + 68833.

It is an arithmetic number, because the mean of its divisors is an integer number (45073380).

Almost surely, 2^822427825 is an apocalyptic number.

It is an amenable number.

822427825 is a deficient number, since it is larger than the sum of its proper divisors (259333295).

822427825 is a wasteful number, since it uses less digits than its factorization.

822427825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13377 (or 13372 counting only the distinct ones).

The product of its digits is 143360, while the sum is 40.

The square root of 822427825 is about 28678.0024583303. The cubic root of 822427825 is about 936.9130002404.

The spelling of 822427825 in words is "eight hundred twenty-two million, four hundred twenty-seven thousand, eight hundred twenty-five".