825276505 has 4 divisors (see below), whose sum is σ = 990331812. Its totient is φ = 660221200.

The previous prime is 825276497. The next prime is 825276521. The reversal of 825276505 is 505672528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 171400464 + 653876041 = 13092^2 + 25571^2 .

It is not a de Polignac number, because 825276505 - 2³ = 825276497 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 82527646 + ... + 82527655.

It is an arithmetic number, because the mean of its divisors is an integer number (247582953).

Almost surely, 2^825276505 is an apocalyptic number.

It is an amenable number.

825276505 is a deficient number, since it is larger than the sum of its proper divisors (165055307).

825276505 is a wasteful number, since it uses less digits than its factorization.

825276505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165055306.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 825276505 is about 28727.6261636774. The cubic root of 825276505 is about 937.9934961504.

The spelling of 825276505 in words is "eight hundred twenty-five million, two hundred seventy-six thousand, five hundred five".