1822863025 has 9 divisors (see below), whose sum is σ = 2260614891. Its totient is φ = 1458119640.

The previous prime is 1822863013. The next prime is 1822863047. The reversal of 1822863025 is 5203682281.

The square root of 1822863025 is 42695.

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., 656230689 + 1166632336 = 25617^2 + 34156^2 .

It is not a de Polignac number, because 1822863025 - 2⁹ = 1822862513 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 (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 209206 + ... + 217744.

Almost surely, 2^1822863025 is an apocalyptic number.

1822863025 is the 42695-th square number.

1822863025 is the 21348-th centered octagonal number.

It is an amenable number.

1822863025 is a deficient number, since it is larger than the sum of its proper divisors (437751866).

1822863025 is an frugal number, since it uses more digits than its factorization.

1822863025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17088 (or 8544 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The cubic root of 1822863025 is about 1221.5690250838.

The spelling of 1822863025 in words is "one billion, eight hundred twenty-two million, eight hundred sixty-three thousand, twenty-five".