825488385 has 16 divisors (see below), whose sum is σ = 1321229184. Its totient is φ = 440111232.

The previous prime is 825488351. The next prime is 825488399. The reversal of 825488385 is 583884528.

It is not a de Polignac number, because 825488385 - 2¹⁰ = 825487361 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 47604 + ... + 62586.

It is an arithmetic number, because the mean of its divisors is an integer number (82576824).

Almost surely, 2^825488385 is an apocalyptic number.

It is an amenable number.

825488385 is a deficient number, since it is larger than the sum of its proper divisors (495740799).

825488385 is a wasteful number, since it uses less digits than its factorization.

825488385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18664.

The product of its digits is 2457600, while the sum is 51.

The square root of 825488385 is about 28731.3136664511. The cubic root of 825488385 is about 938.0737622007.

The spelling of 825488385 in words is "eight hundred twenty-five million, four hundred eighty-eight thousand, three hundred eighty-five".