825025578 has 32 divisors (see below), whose sum is σ = 1793299200. Its totient is φ = 251522496.

The previous prime is 825025577. The next prime is 825025601. The reversal of 825025578 is 875520528.

It is not an unprimeable number, because it can be changed into a prime (825025577) 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 15 ways as a sum of consecutive naturals, for example, 40018 + ... + 57021.

It is an arithmetic number, because the mean of its divisors is an integer number (56040600).

Almost surely, 2^825025578 is an apocalyptic number.

825025578 is an abundant number, since it is smaller than the sum of its proper divisors (968273622).

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

825025578 is a wasteful number, since it uses less digits than its factorization.

825025578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97166.

The product of its (nonzero) digits is 224000, while the sum is 42.

The square root of 825025578 is about 28723.2584850675. The cubic root of 825025578 is about 937.8984202370.

The spelling of 825025578 in words is "eight hundred twenty-five million, twenty-five thousand, five hundred seventy-eight".