825768305 has 4 divisors (see below), whose sum is σ = 990921972. Its totient is φ = 660614640.

The previous prime is 825768289. The next prime is 825768313. The reversal of 825768305 is 503867528.

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 300120976 + 525647329 = 17324^2 + 22927^2 .

It is not a de Polignac number, because 825768305 - 2⁴ = 825768289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82576826 + ... + 82576835.

It is an arithmetic number, because the mean of its divisors is an integer number (247730493).

Almost surely, 2^825768305 is an apocalyptic number.

It is an amenable number.

825768305 is a deficient number, since it is larger than the sum of its proper divisors (165153667).

825768305 is a wasteful number, since it uses less digits than its factorization.

825768305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165153666.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 825768305 is about 28736.1845936443. The cubic root of 825768305 is about 938.1797826435.

The spelling of 825768305 in words is "eight hundred twenty-five million, seven hundred sixty-eight thousand, three hundred five".