822531094225 has 9 divisors (see below), whose sum is σ = 1019944179867. Its totient is φ = 658021247640.

The previous prime is 822531094207. The next prime is 822531094271. The reversal of 822531094225 is 522490135228.

The square root of 822531094225 is 906935.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 296111193921 + 526419900304 = 544161^2 + 725548^2 .

It is a de Polignac number, because none of the positive numbers 2^k-822531094225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4443982 + ... + 4625368.

Almost surely, 2^822531094225 is an apocalyptic number.

822531094225 is the 906935-th square number.

822531094225 is the 453468-th centered octagonal number.

It is an amenable number.

822531094225 is a deficient number, since it is larger than the sum of its proper divisors (197413085642).

822531094225 is an frugal number, since it uses more digits than its factorization.

822531094225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362784 (or 181392 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 822531094225 in words is "eight hundred twenty-two billion, five hundred thirty-one million, ninety-four thousand, two hundred twenty-five".