825459459 has 12 divisors (see below), whose sum is σ = 1209764808. Its totient is φ = 500278240.

The previous prime is 825459431. The next prime is 825459493. The reversal of 825459459 is 954954528.

It is not a de Polignac number, because 825459459 - 2⁸ = 825459203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (825459409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1136634 + ... + 1137359.

It is an arithmetic number, because the mean of its divisors is an integer number (100813734).

Almost surely, 2^825459459 is an apocalyptic number.

825459459 is a deficient number, since it is larger than the sum of its proper divisors (384305349).

825459459 is a wasteful number, since it uses less digits than its factorization.

825459459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274018 (or 2274007 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 51.

The square root of 825459459 is about 28730.8102739898. The cubic root of 825459459 is about 938.0628050351.

The spelling of 825459459 in words is "eight hundred twenty-five million, four hundred fifty-nine thousand, four hundred fifty-nine".